/******************************************************************************
* common_validator.js
*
* Change History: 
* DD.MMM.YYYY                  Author                     Description
* 09.FEB.2005			Laxmi Narsaiah Samala      common validations are supported.
*
* @version 1.0
*
* © Copyright 2005 Satyam Computer Service Pvt. Ltd.<b>
* All rights reserved.
******************************************************************************/

function Validator(frmname)
{
//	this.formobj = null;
//	this.objSet = null;
//	this.addVlidation = null;
//	this.validate = null;
	
    this.formobj=document.forms[frmname];
	this.objSet=new Array();
	if(!this.formobj)
	{
	    alert("BUG: couldnot get Form object "+frmname);
		return;
	}
	this.addValidation = add_validation;
	this.validate=funct_validate;
}
function funct_validate()
{
	for(var itr=0;itr < this.objSet.length;itr++)
	{
		var itemNameObj=this.objSet[itr];
     	if(itemNameObj.validationset && !itemNameObj.validationset.validate())
		{
		  return false;
		}
	}
//	this.objSet = null;
	return true;
}

function add_validation(itemname,descriptor,errstr)
{
	if(!this.formobj)
	{
		alert("BUG: the form object is not set properly");
        return;
    }//if
    var itemobj = this.formobj[itemname];
    if(!itemobj)
    {
		alert("BUG: Couldnot get the input object named: "+itemname);
		return;
	}
	if(itemobj.length && isNaN(itemobj.selectedIndex) )
    //for radio button; don't do for 'select' item
    {
    
        var descriptorNew=null;
		for(ind=0;ind<itemobj.length; ind++)
		{
			itemobjSub = itemobj[ind];
			itemobjSub.value=Trim(itemobjSub.value);
		    this.objSet[this.objSet.length]=itemobjSub;
	
			//This is added for CDATE only		    			
			descriptorNew = descriptor;
		    if(descriptor.substring(2,7).toUpperCase()=="CDATE")
		    {
		       descriptorNew = descriptor+"#"+ind;
		    }
		    //End for CDATE.		    	    
			if(!itemobjSub.validationset)
			{
				itemobjSub.validationset = new ValidationSet(itemobjSub);
			}
			itemobjSub.validationset.add(descriptorNew,errstr);
		}
	}
	else
	{
		this.objSet[this.objSet.length]=itemobj;
		itemobj.value=Trim(itemobj.value);
		if(!itemobj.validationset)
		{
			itemobj.validationset = new ValidationSet(itemobj);
		}
		//This is added for CDATE only
		descriptorNew = descriptor;
	    if(descriptor.substring(2,7).toUpperCase()=="CDATE")
	    {
	       descriptorNew = descriptor+"#-1";
	    }		
	    //End for CDATE.
		itemobj.validationset.add(descriptorNew,errstr);
	}
}

function ValidationDesc(inputitem,desc,error)
{
    this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}
function vdesc_validate()
{
 if(!validateInput(this.desc,this.itemobj,this.error))
 {
    this.itemobj.focus();
    
	if(this.itemobj.type.substring(0,6).toUpperCase() != "SELECT")
	{
	  this.itemobj.select();
	}
	return false;
 }
 return true;
}
function ValidationSet(inputitem)
{
    this.vSet=new Array();
	this.add= add_validationdesc;
	this.validate= vset_validate;
	this.itemobj = inputitem;
}
function add_validationdesc(desc,error)
{
  this.vSet[this.vSet.length]= new ValidationDesc(this.itemobj,desc,error);
}
function vset_validate()
{
   for(var itr=0;itr<this.vSet.length;itr++)
	 {
	   if(!this.vSet[itr].validate())
		 {
		   return false;
		 }
	 }
	 return true;
}

/*  checks the validity of an email address entered 
*   returns true or false 
*/ 
function validateEmail(email)
{
// var objRegEmail  =/(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i;
  var emailFilter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
  return email.match(emailFilter);
 
/*
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
*/
}

function Trim(sInString) {
  sInString = sInString.replace( /^\s+/g, "" );// strip leading
  return sInString.replace( /\s+$/g, "" );// strip trailing
}
function validateSSN(ssnObj,tsurNameObj, errStrr)
{
	var ssnValue=Trim(ssnObj.value);
    if(ssnValue.length == 0) return true;
	if(ssnValue.length != 8)
	{
		alert(errStrr+"\n[Length should be: 8 characters]");
		ssnObj.focus();
		ssnObj.select();
		return false;
	}
	
	var retValue = ssnValue.match(/[A-Za-z]\d{7}/g);

    if(retValue == null)
	{
		alert(errStrr+"\n[First character should be: Alphabet in Uppercase & "+
						"Next 7 characters should be: Digits]");
		ssnObj.focus();
		ssnObj.select();
		return false;	
	}
	return true;
}	

function validateNIC(nicObj,tsurNameObj, errStrr)
{
	var nicNo=nicObj.value.toUpperCase();
	objCompare = nicObj.form.elements[tsurNameObj];
       
    if(!objCompare)
    {
       alert("BUG: Element with name"+strCompareElement+" not found !");
       return false;
    }
    
	if(nicNo.length != 14)
	{
		alert(errStrr+"\n[Length should be: 14 characters]");
		nicObj.focus();
		nicObj.select();
		return false;
	}
	
	var retValue = nicNo.match(/[A-Z]\d{12}[A-Z0-9]/g);

    if(retValue == null)
	{
		alert(errStrr+"\n[First character should be: Alphabet & "+
						"Next 12 characters should be: Digits & \n"+
						" 14th character should be: either Alphabet or Digit]");
		nicObj.focus();
		nicObj.select();
		return false;	
	}
	
	{
		var alpha=new Array('A','B','C','D','E','F','G');
		var lastChar;
		var sum=(nicNo.charCodeAt(0)-55)*14;

		for(var k=1; k<=12; k++)
		{
		   sum = sum + Number(nicNo.charAt(k))*(14-k);
		}
		if(sum%17 == 0)
			lastChar = sum%17;
		else	 
			lastChar = 17-(sum%17);
			
		if(lastChar>=10)
		{
			lastChar=alpha[lastChar-10];
		}
		if(!(nicNo.charAt(13)==lastChar))
		{
			alert(errStrr);
			nicObj.focus();
			nicObj.select();
			return false;
		}
		else
		{
			return true;
		}
   }
}

function validateAsNotRequiredNIC(nicObj,tsurNameObj, errStrr)
{
	var nicNo=nicObj.value.toUpperCase();
	objCompare = nicObj.form.elements[tsurNameObj];
       
    if(!objCompare)
    {
       alert("BUG: Element with name"+strCompareElement+" not found !");
       return false;
    }
    
    if(nicNo.length == 0)
    {
       return true;
    }
    
	if(nicNo.length != 14)
	{
		alert(errStrr+"\n[Length should be: 14 characters]");
		nicObj.focus();
		nicObj.select();
		return false;
	}
	
	var retValue = nicNo.match(/[A-Z]\d{12}[A-Z0-9]/g);

    if(retValue == null)
	{
		alert(errStrr+"\n[First character should be: Alphabet & "+
						"Next 12 characters should be: Digits & \n"+
						" 14th character should be: either Alphabet or Digit]");
		nicObj.focus();
		nicObj.select();
		return false;	
	}
	
	{
		var alpha=new Array('A','B','C','D','E','F','G');
		var lastChar;
		var sum=(surName.charCodeAt(0)-55)*14;
		for(var k=1; k<=12; k++)
		{
		   sum = sum + Number(nicNo.charAt(k))*(14-k);
		}
		lastChar=17-(sum%17);
		if(lastChar>=10)
		{
			lastChar=alpha[lastChar-10];
		}
		if(!(nicNo.charAt(13)==lastChar))
		{
			alert(errStrr);
			nicObj.focus();
			nicObj.select();
			return false;
		}
		else
		{
			return true;
		}
   }
}

/**** To remove surname dependency.
function validateNIC(nicObj,tsurNameObj, errStrr)
{
	var nicNo=nicObj.value.toUpperCase();
	objCompare = nicObj.form.elements[tsurNameObj];
       
    if(!objCompare)
    {
       alert("BUG: Element with name"+strCompareElement+" not found !");
       return false;
    }
    
	if(nicNo.length != 14)
	{
		alert(errStrr+"\n[Length should be: 14 characters]");
		nicObj.focus();
		nicObj.select();
		return false;
	}
	
	var retValue = nicNo.match(/[A-Z]\d{12}[A-Z0-9]/g);

    if(retValue == null)
	{
		alert(errStrr+"\n[First character should be: Alphabet & "+
						"Next 12 characters should be: Digits & \n"+
						" 14th character should be: either Alphabet or Digit]");
		nicObj.focus();
		nicObj.select();
		return false;	
	}
	
	{
  	   surName=Trim(objCompare.value).charAt(0).toUpperCase();	
	   if(surName == "")
	   {
		   return true;	
	   }
       if(!(nicNo.charAt(0)==surName))
	   {
			alert(errStrr);
			nicObj.focus();
			nicObj.select();
			return false;
	   }
	   else
	   {
			var alpha=new Array('A','B','C','D','E','F','G');
			var lastChar;
			var sum=(surName.charCodeAt(0)-55)*14;
			for(var k=1; k<=12; k++)
			{
			   sum = sum + Number(nicNo.charAt(k))*(14-k);
			}
			lastChar=17-(sum%17);
			if(lastChar>=10)
			{
				lastChar=alpha[lastChar-10];
			}
			if(!(nicNo.charAt(13)==lastChar))
			{
				alert(errStrr);
				nicObj.focus();
				nicObj.select();
				return false;
			}
			else
			{
				return true;
			}
	   }
   }
} ****/

function TestComparison(objValue,strCompareElement,strvalidator,strError)
{
   var bRet=true;
   var objCompare=null;
   if(!objValue.form)
   {
      alert("BUG: No Form object!");
	  return false
   }
   objCompare = objValue.form.elements[strCompareElement];
   if(!objCompare)
   {
     alert("BUG: Element with name"+strCompareElement+" not found !");
     return false;
   }
   if(strvalidator != "eqelmnt" &&
   	  strvalidator != "neelmnt")
   {
      if(isNaN(objValue.value)) 
      { 
        alert(objValue.name+": Should be a number "); 
        return false; 
      }//if 
      if(isNaN(objCompare.value)) 
      { 
        alert(objCompare.name+": Should be a number "); 
        return false; 
      }//if 	  
   }//if
   var cmpstr="";
   switch(strvalidator)
   {
       case "eqelmnt": 
			{
			   if(objValue.value != objCompare.value)
			   {
 	 		      cmpstr = " should be equal to ";
			      bRet = false;
			   }//if
			   break;
			}//case
		case "ltelmnt":
			{
			if(eval(objValue.value) >= eval(objCompare.value)) 
				{
			       cmpstr =  " should be less than "; 
			       bRet = false;					
				}
			  break;
			}//case
		case "leelmnt":
			{
				if(eval(objValue.value) >  eval(objCompare.value)) 
				{
			       cmpstr =  " should be less than or equal to"; 
			       bRet = false;					
				}
			  break;
			}//case		
		case "gtelmnt":
			{
				if(eval(objValue.value) <=  eval(objCompare.value)) 
				{
			       cmpstr =  " should be greater than"; 
			       bRet = false;					
				}
			  break;
			}//case
		case "geelmnt":
			{
				if(eval(objValue.value) < eval(objCompare.value)) 
				{
			       cmpstr =  " should be greater than or equal to"; 
			       bRet = false;					
				}
			  break;
			}//case
		case "neelmnt":
			{
			   if(objValue.value.length > 0 &&
			     objCompare.value.length > 0 &&
			     objValue.value == objCompare.value)
			   {
 	 		      cmpstr = " should be different from ";
			      bRet = false;
			   }//if
			   break;			
			}			
   }//switch
   if(bRet==false)
   {
      if(!strError || strError.length==0)
	  {
	    strError = objValue.name + cmpstr + objCompare.value; 
	  }//if
	  alert(strError);
   }//if
   return bRet;
}

function WorkPermit(objValue,strCompareEle,strvalidator,strError)
{
   	var bRet=false;
   	var wkValue = objValue.value;
   	if(wkValue.length == 0)
    	return true;

   	var retValue = wkValue.match(/([0-9]{4})[\/][0-9]{1,10}$/i); 

   	if(retValue!=null)
   	{
        var strCompareElement = strCompareEle.split(":");
        var minValue = Number(strCompareElement[0]);
		var maxValue = Number(strCompareElement[1]);    
		var cmpValue = Number(wkValue.substring(0,4));

      	if(cmpValue>= minValue && cmpValue <=maxValue)
        	return true;
		else
            bRet=false;  

	}
	else
	{
		bRet=false;
	}
	
	if(bRet==false)
	{  
		if(!strError || strError.length==0)
        {
			strError = objValue.name + cmpstr + objCompare.value;
        }//if
        alert(strError);
   }//if
   return bRet;
}

/*
function WorkPermit(objValue,strCompareEle,strvalidator,strError)
{
   var bRet=false;
   var wkValue = objValue.value;
   if(wkValue.length == 0 )
     return true;

   var regExp =/\d{4}/\d{1,10}/g;
   
   var retValue = wkValue.match(regExp);  
   if(retValue==true)
   {
	  var strCompareElement = strCompareEle.split(":");
      var minValue = Number(strCompareElement[0]);
      var maxValue = Number(strCompareElement[1]);    
      var cmpValue = Number(objValue.substring(0,4));
      if(cmpValue>= minValue && cmpValue <=maxValue)
        return true;
   }
   if(bRet==false)
   {	
   	  if(!strError || strError.length==0)
	  {
	   	strError = objValue.name + cmpstr + objCompare.value; 
	  }//if
	  alert(strError);
   }//if
     
   return bRet;
}
*/

function DateTestComparison(objValue,strCompareEle,strvalidator,strError)
{
   var bRet=true;
   var strCompareElement = strCompareEle.split("#");

   var objCompare = strCompareElement[0];
   var indx = strCompareElement[1];
	
//alert(objValue.form.elements[objCompare][Number(indx)]);

   if(indx == "-1")
      objCompare = objValue.form.elements[objCompare].value;
   else
   {
		//     objCompare = objValue.form.elements[objCompare][Number(indx)].value; 

	   if(!(objValue.form.elements[objCompare][Number(indx)]))
    	  objCompare = objValue.form.elements[objCompare].value;
	   else
	     objCompare = objValue.form.elements[objCompare][Number(indx)].value; 
   }
   
   if(objCompare == null) return true;  
   
   if(objValue.value.length==0 || objCompare.length == 0) 
   { 
      return true; 
   }//if 

   var cmpstr="";
   switch(strvalidator)
   {
       case "eqCdate": 
			{
			   if(Date.parse(dateChange(objValue.value)) != Date.parse(dateChange(objCompare)))
			   {		   
 	 		      cmpstr = " should be equal to ";
			      bRet = false;
			   }//if
			   break;
			}//case
		case "ltCdate":
			{
			if(Date.parse(dateChange(objValue.value)) >= Date.parse(dateChange(objCompare)))
				{
			       cmpstr =  " should be less than "; 
			       bRet = false;					
				}
			  break;
			}//case
		case "leCdate":
			{
				if(Date.parse(dateChange(objValue.value)) > Date.parse(dateChange(objCompare)))
				{
			       cmpstr =  " should be less than or equal to"; 
			       bRet = false;					
				}
			  break;
			}//case		
		case "gtCdate":
			{
				if(Date.parse(dateChange(objValue.value)) <= Date.parse(dateChange(objCompare)))
				{
			       cmpstr =  " should be greater than"; 
			       bRet = false;					
				}
			  break;
			}//case
		case "geCdate":
			{
				if(Date.parse(dateChange(objValue.value)) < Date.parse(dateChange(objCompare)))
				{
			       cmpstr =  " should be greater than or equal to"; 
			       bRet = false;					
				}
			  break;
			}//case
		case "neCdate":
			{
			   if(Date.parse(dateChange(objValue.value)) != Date.parse(dateChange(objCompare)))
			   {
 	 		      cmpstr = " should be different from ";
			      bRet = false;
			   }//if
			   break;			
			}			
   }//switch
   if(bRet==false)
   {
      if(!strError || strError.length==0)
	  {
	    strError = objValue.name + cmpstr + objCompare.value; 
	  }//if
	  alert(strError);
   }//if
   return bRet;
}

function TestSelMin(objValue,strMinSel,strError)
{
    var bret = true;
	var objcheck = objValue.form.elements[objValue.name];
	var chkcount =0;
	if(objcheck.length)
	{
		for(var c=0;c < objcheck.length;c++)
		{
		   if(objcheck[c].checked == "1")
		   {
		     chkcount++;
		   }//if
		}//for
	}
	else
	{
	  chkcount = (objcheck.checked == "1")?1:0;
	}
	var minsel = eval(strMinSel);
	if(chkcount < minsel)
	{
		if(!strError || strError.length ==0) 
		{ 
			strError = "Please Select atleast"+minsel+" check boxes for"+objValue.name;  
		}//if                                                               
		alert(strError); 
		bret = false;
	}
	return bret;
}

function TestDontSelectChk(objValue,chkValue,strError)
{
    var pass=true;
	var objcheck = objValue.form.elements[objValue.name];
    if(objcheck.length)
	{
		var idxchk=-1;
		for(var c=0;c < objcheck.length;c++)
		{
		   if(objcheck[c].value == chkValue)
		   {
		     idxchk=c;
			 break;
		   }//if
		}//for
		if(idxchk>= 0)
		{
		  if(objcheck[idxchk].checked=="1")
		  {
		    pass=false;
		  }
		}//if
	}
	else
	{
		if(objValue.checked == "1")
		{
			pass=false;
		}//if
	}//else
	if(pass==false)
	{
     if(!strError || strError.length ==0) 
        { 
        	strError = "Can't Proceed as you selected "+objValue.name;  
        }//if			  
	  alert(strError);
	  
	}
    return pass;
}

function TestRequiredInput(objValue,strError)
{
 var ret = true;
    if(eval(objValue.value.length) == 0) 
    { 
       if(!strError || strError.length ==0) 
       { 
         strError = objValue.name + " : Required Field"; 
       }//if 
       alert(strError); 
       ret=false; 
    }//if 
return ret;
}

/** modified by babu on 23042005 */
function TestMaxVal(objValue,strMaxVal,strError)
{
 var ret = true;
    if(eval(objValue.value) > eval(strMaxVal)) 
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name + " : "+ strMaxVal +" value maximum "; 
      }//if 
      alert(strError + "\n[Current value = " + objValue.value + " ]"); 
      ret = false; 
    }//if 
return ret;
}

/** modified by babu on 23042005 */
function TestMinVal(objValue,strMaxVal,strError)
{
 	var ret = true;
    if(eval(objValue.value) < eval(strMaxVal)) 
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name + " : "+ strMaxVal +" value maximum "; 
      }//if 
      alert(strError + "\n[Current value = " + objValue.value + " ]"); 
      ret = false; 
    }//if 
	return ret;
}

function TestMaxLen(objValue,strMaxLen,strError)
{
 var ret = true;
    if(eval(objValue.value.length) > eval(strMaxLen)) 
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name + " : "+ strMaxLen +" characters maximum "; 
      }//if 
      alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
      ret = false; 
    }//if 
return ret;
}

function TestMinLen(objValue,strMinLen,strError)
{
 var ret = true;
    if(eval(objValue.value.length) <  eval(strMinLen)) 
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name + " : " + strMinLen + " characters minimum  "; 
      }//if               
      alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
      ret = false;   
    }//if 
return ret;
}

function TestInputType(objValue,strRegExp,strError,strDefaultError)
{
   var ret = true;

    var charpos = objValue.value.search(strRegExp); 
    if(objValue.value.length > 0 &&  charpos >= 0) 
    { 
     if(!strError || strError.length ==0) 
      { 
        strError = strDefaultError;
      }//if 
      alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
      ret = false; 
    }//if 
 return ret;
}

function TestEmail(objValue,strError)
{
var ret = true;
     if(objValue.value.length > 0 && !validateEmail(objValue.value)	 ) 
     { 
       if(!strError || strError.length ==0) 
       { 
          strError = objValue.name+": Enter a valid Email address "; 
       }//if                                               
       alert(strError); 
       ret = false; 
     }//if 
return ret;
}

function TestLessThan(objValue,strLessThan,strError)
{
var ret = true;
	  if(isNaN(objValue.value)) 
	  { 
	    alert(objValue.name+": Should be a number "); 
	    ret = false; 
	  }//if 
	  else
	  if(eval(objValue.value) >=  eval(strLessThan)) 
	  { 
	    if(!strError || strError.length ==0) 
	    { 
	      strError = objValue.name + " : value should be less than "+ strLessThan; 
	    }//if               
	    alert(strError); 
	    ret = false;                 
	   }//if   
return ret;          
}

function TestGreaterThan(objValue,strGreaterThan,strError)
{
var ret = true;
     if(isNaN(objValue.value)) 
     { 
       alert(objValue.name+": Should be a number "); 
       ret = false; 
     }//if 
	 else
     if(eval(objValue.value) <=  eval(strGreaterThan)) 
      { 
        if(!strError || strError.length ==0) 
        { 
          strError = objValue.name + " : value should be greater than "+ strGreaterThan; 
        }//if               
        alert(strError);  
        ret = false;
      }//if  
return ret;           
}

function checkAge(objValue,chkAge,strError)
{
	var ret = true;
	    
    if(isNaN(objValue.value)) 
    { 
    	alert(objValue.name+": Should be a number "); 
       	ret = false; 
   	}//if 
	else
    if(eval(objValue.value) <  eval(chkAge)) 
    { 
    	if(!strError || strError.length ==0) 
        { 
        	strError = objValue.name + " : value should be greater than or equals to "+ strGreaterThan; 
        }//if               
        
        alert(strError);  
        ret = false;
    }//if  
	return ret;           
}

function TestRegExp(objValue,strRegExp,strError)
{
var ret = true;
    if( objValue.value.length > 0 && 
        !objValue.value.match(strRegExp) ) 
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name+": Invalid characters found "; 
      }//if                                                               
      alert(strError); 
      ret = false;                   
    }//if 
return ret;
}

function todayChange()
{
	var todate = new Date();  
    var dateMMDDYYYY = new Date(todate.getFullYear(),todate.getMonth(),todate.getDate());
    return dateMMDDYYYY;
}

function validateYear(objValue, strError)
{
   	var todate = new Date();  
	var ret = true;
    if( !(objValue.value.length > 0 &&  objValue.value <= todate.getFullYear()) )
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name+": Invalid Year value\n[Input should not be greater than current year.]"; 
      }
      alert(strError); 
      ret = false;                   
    }
	return ret;
}

function validateMonth(objValue, strError)
{
   	var todate = new Date();  
	var ret = true;
    if( !(objValue.value.length > 0 &&  objValue.value <= todate.getMonth()) )
    { 
      if(!strError || strError.length ==0) 
      { 
        strError = objValue.name+": Invalid Month value\n[Input should not be greater than current month.]"; 
      }
      alert(strError); 
      ret = false;                   
    }
	return ret;
}

function validateMonthYear(objValue, cmdvalue, strError)
{
   	var todate = new Date();  
	var ret=false;
	cmdValue=objValue.form.elements[cmdvalue];

    if(objValue.value.length > 0 && cmdValue.value.length > 0)
    {
      if(objValue.value == todate.getFullYear() && cmdValue.value <= (todate.getMonth()+1) )
      { 
     	ret = true;
      }
      else if(eval(objValue.value) < todate.getFullYear())
      {
      	ret = true;
      }
      else
      {
        ret = false;
      }
    }
    else
    {
 		ret = true;
    }

    if(!ret)
    {
    	if(!strError || strError.length ==0) 
    	{ 
    	 	strError = objValue.name+": Invalid Month & Year"; 
    	}
	    alert(strError); 
    }
	return ret;
}

function dateChange(dateDDMMMYYYY)
{
    var dat = dateDDMMMYYYY.split("-");
    tempMonths="JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";
    monIndex = parseInt(tempMonths.indexOf(dat[1])/3);
    var dt = dat[1]+"-"+dat[0]+"-"+dat[2];
    var dateDDMMMYYYY = new Date(dat[2],monIndex, dat[0]);
    return dateDDMMMYYYY;
}

function chkToDate(objValue,command, strRegExp,strError)
{
    var ret=true;
    var thisdate = todayChange(); 
    if(objValue.value.length == 0) return true;

    var givenDate = dateChange(objValue.value); 

    //This change the date-string from DDMMYYYY to MMDDYYYY
    command = command.toUpperCase();
    
    if(command == "EQ_TODAY")
    {
	    if(Date.parse(givenDate) != Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should be equals to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }    
    }
    if(command == "NE_TODAY")
    {
	    if(Date.parse(givenDate) == Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should not be equals to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }    
    }
    if(command == "LT_TODAY")
    {
	    if(Date.parse(givenDate) >= Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should not be greater than or equals to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }    
    }
    if(command == "GT_TODAY")
    {
	    if(Date.parse(givenDate) <= Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should not be less than or equals to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }        
    }
    if(command == "LE_TODAY")
    {
	    if(Date.parse(givenDate) > Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should not be greater than to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }    
    }
    if(command == "GE_TODAY")
    {
	    if(Date.parse(givenDate) < Date.parse(thisdate))
	    {
		    if(!strError || strError.length ==0) strError = "Date should not be less than to today's date.";
	    	alert(strError); 
		    ret = false; 
	    }        
    }
    return ret;      
}

function TestDontSelect(objValue,index,strError)
{
var ret = true;
     if(objValue.selectedIndex == null) 
     { 
       alert("BUG: dontselect command for non-select Item"); 
       ret = false; 
     } 
	 else
     if(objValue.selectedIndex == eval(index)) 
     { 
      if(!strError || strError.length ==0) 
       { 
       strError = objValue.name+": Please Select one option "; 
       }//if                                                               
       alert(strError); 
       ret =  false;                                   
      } 
return ret;
}

function TestSelectOneRadio(objValue,strError)
{
	var objradio = objValue.form.elements[objValue.name];
	var one_selected=false;
	for(var r=0;r < objradio.length;r++)
	{
	  if(objradio[r].checked == "1")
	  {
	  	one_selected=true;
		break;
	  }
	}
	if(false == one_selected)
	{
      if(!strError || strError.length ==0) 
       {
	    strError = "Please select one option from "+objValue.name;
	   }	
	  alert(strError);
	}
return one_selected;
}

//*  Checks each field in a form 
function validateInput(strValidateStr,objValue,strError) 
{ 
    var ret = true;
    var epos = strValidateStr.search("="); 
    var  command  = ""; 
    var  cmdvalue = ""; 
    if(epos >= 0) 
    { 
     //command  = strValidateStr.substring(0,epos); 
     //cmdvalue = strValidateStr.substr(epos+1); 
     var tmp = strValidateStr.split("=");
     command = tmp[0];
     cmdvalue = tmp[1];
    } 
    else 
    { 
     command = strValidateStr; 
    } 

    switch(command) 
    { 
        case "req": 
        case "required": 
         { 
		   ret = TestRequiredInput(objValue,strError)
           break;             
         }
        case "maxvalue": 
        case "maxval": 
          { 
			 ret = TestMaxVal(objValue,cmdvalue,strError)
             break; 
          } 
        case "minvalue": 
        case "minval": 
          { 
			 ret = TestMinVal(objValue,cmdvalue,strError)
             break; 
          }                   
        case "maxlength": 
        case "maxlen": 
          { 
			 ret = TestMaxLen(objValue,cmdvalue,strError)
             break; 
          }
        case "minlength": 
        case "minlen": 
           { 
			 ret = TestMinLen(objValue,cmdvalue,strError)
             break; 
           }
        case "alnum": 
        case "alphanumeric": 
           { 
				ret = TestInputType(objValue,"[^A-Za-z0-9]",strError, 
						objValue.name+": Only alpha-numeric characters allowed ");
				break; 
           }
        case "alnum_s": 
        case "alphanumeric_space": 
           { 
				ret = TestInputType(objValue,"[^A-Za-z0-9\\s]",strError, 
						objValue.name+": Only alpha-numeric characters and space allowed ");
				break; 
           }		   
        case "alpha_sp_dot": 
        case "ALPHA_SP_DOT": 
        case "alphabetic_space_dot": 
        case "ALPHABETIC_SPACE_DOT":         
           { 
				ret = TestInputType(objValue,"[^A-Za-z.\\s]",strError, 
						objValue.name+": Only alphabetic characters, space and dot allowed ");
				break; 
           }		   
        case "alpha_sp_comma": 
        case "ALPHA_SP_COMMA": 
           { 
				ret = TestInputType(objValue,"[^A-Za-z,\\s]",strError, 
						objValue.name+": Only alphabetic characters, space and comma allowed ");
				break; 
           }		   
        case "num": 
        case "numeric": 
           { 
                ret = TestInputType(objValue,"[^0-9]",strError, 
						objValue.name+": Only digits allowed ");
                break;               
           }
        case "num_d": 
        case "numeric_decimal": 
           { 
                ret = TestInputType(objValue,"[^0-9\\.]",strError, 
						objValue.name+": Only digits and dot are allowed ");
                break;               
           }
		case "notnum": 
        case "notnumeric": 
       	{ 
            if(objValue.value.length != 0)
				ret = TestInputType(objValue,"[0-9]{"+objValue.value.length+"}",strError, 
						objValue.name+": only numeric characters are not allowed allowed ");
			break; 
        }
        case "alphabetic": 
        case "alpha": 
           { 
                ret = TestInputType(objValue,"[^A-Za-z]",strError, 
						objValue.name+": Only alphabetic characters allowed ");
                break; 
           }
        case "alphabetic_space": 
        case "alpha_s": 
           { 
                ret = TestInputType(objValue,"[^A-Za-z\\s]",strError, 
						objValue.name+": Only alphabetic characters and space allowed ");
                break; 
           }
        case "alphabetic_space_quote": 
        case "alpha_s_q": 
           { 
                ret = TestInputType(objValue,"[^A-Za-z\\'\\s]",strError, 
						objValue.name+": Only alphabetic characters, space and quote are allowed ");
                break; 
           }           
        case "alp_dt_und_hip_slh":
        case "ALP_DGT_UND_HIP_SLH":        
           {
                ret = TestInputType(objValue,"[^A-Za-z0-9\\-_./\\s]",strError, 
                        objValue.name+": Only alphabetics, digits, higphen, underscore, dot, space and slash are allowed ");
                break;
           }
        case "alp_dt_und_hip_slh_cma":
        case "ALP_DGT_UND_HIP_SLH_CMA":        
           {
                ret = TestInputType(objValue,"[^A-Za-z0-9\\-_,/\\s]",strError, 
                        objValue.name+": Only alphabetics, digits, higphen, underscore, comma, space and slash are allowed ");
                break;
           }           
        case "address":
        case "ADDRESS":        
        {
        	ret = TestInputType(objValue,"[^A-Za-z0-9\\'\\-_.,/\\s]",strError, 
                   objValue.name+": Only alphabetics, digits, higphen, underscore and slash are allowed ");
            break;
        } 
		case "surname":
        case "SURNAME":        
        {
        	  ret = TestInputType(objValue,"[^A-Za-z\\'\\-_,/\\s]",strError, 
                        objValue.name+": Only alphabetics, higphen, underscore, comma, space and slash are allowed ");
                break;
        }   
		case "ADDRESS_NEW":        
        {
        	ret = TestInputType(objValue,"[^A-Za-z0-9\\'\\-_.,/\\s()]",strError, 
                   objValue.name+": Only alphabetics, digits, higphen, underscore and slash are allowed ");
            break;
        }  
		case "POBirth":        
        {
        	ret = TestInputType(objValue,"[^A-Za-z0-9\\'\\-.,\\s()]",strError, 
                   objValue.name+": Only alphabetics, digits, higphen, underscore and slash are allowed ");
            break;
        }  
		case "email": 
        { 
			ret = TestEmail(objValue,strError);
            break; 
        }
        case "nic": 
        case "NIC": 
        { 
			ret = validateNIC(objValue,cmdvalue,strError);
            break; 
        }
        case "nic_not": 
        case "NIC_NOT": 
        { 
			ret = validateAsNotRequiredNIC(objValue,cmdvalue,strError);
            break; 
        }
        case "ssn": 
        case "SSN": 
          { 
			   ret = validateSSN(objValue,cmdvalue,strError);
               break; 
          }
        case "eq_today": 
        case "EQ_TODAY": 
        case "ne_today": 
        case "NE_TODAY": 
        case "lt_today": 
        case "LT_TODAY": 
        case "gt_today": 
        case "GT_TODAY": 
        case "le_today": 
        case "LE_TODAY": 
        case "ge_today": 
        case "GE_TODAY":
         { 
			   ret = chkToDate(objValue, command, cmdvalue,strError);
               break; 
         }
        case "lt": 
        case "lessthan": 
         { 
    	      ret = TestLessThan(objValue,cmdvalue,strError);
              break; 
         }
        case "gt": 
        case "greaterthan": 
         { 
			ret = TestGreaterThan(objValue,cmdvalue,strError);
            break; 
         }
        case "regexp": 
         { 
			ret = TestRegExp(objValue,cmdvalue,strError);
           break; 
         }
        case "dontselect": 
         { 
			 ret = TestDontSelect(objValue,cmdvalue,strError)
             break; 
         }
		case "dontselectchk":
		{
			ret = TestDontSelectChk(objValue,cmdvalue,strError)
			break;
		}
		case "selmin":
		{
			ret = TestSelMin(objValue,cmdvalue,strError);
			break;
		}
		case "selone":
		{
			ret = TestSelectOneRadio(objValue,strError);
		    break;
		}		 
		//Comparisons
		case "eqelmnt": 
		case "ltelmnt":
		case "leelmnt":
		case "gtelmnt":
		case "geelmnt":
		case "neelmnt":
		{
		    return TestComparison(objValue,cmdvalue,command,strError);
    		break;
		}

		case "eqCdate": 
		case "ltCdate":
		case "leCdate":
		case "gtCdate":
		case "geCdate":
		case "neCdate":
		{
		    return DateTestComparison(objValue,cmdvalue,command,strError);
    		break;
		}
		case "wk_pt":
		case "WK_PT":
		{
		    ret = WorkPermit(objValue,cmdvalue,command,strError);
    		break;
		}
		case "chkYear":
		{
			ret = validateYear(objValue, strError);
			break;
		}
		case "chkMonth":
		{
			ret = validateMonth(objValue, strError);
			break;
		}	
		case "chkYearMonth":
		{
			ret = validateMonthYear(objValue, cmdvalue, strError);
			break;
		}
		// added on 12.10.2005
		case "alphanumeric_space_plus": 
		{ 
			ret = TestInputType(objValue,"[^A-Za-z0-9\\+\\s]",strError, objValue.name+": Only alpha-numeric characters space and plus are allowed ");
            		break; 
        	}
		case "alphanumeric_space_plus_search": 
		{ 
			ret = TestInputType(objValue,"[^A-Za-z0-9\\+\\s]",strError, objValue.name+": Only alpha-numeric characters space and plus are allowed - search");
            		break; 
	       } 		 				
        case "ge_age": 
        case "GE_AGE": 
        { 
			ret = checkAge(objValue,cmdvalue,strError);
            break; 
        }
		case "alnum_s_d": 

       	case "alphanumeric_space_dot": 
		{ 
			ret = TestInputType(objValue,"[^A-Za-z0-9\\.\\s]",strError, objValue.name+": Only alpha-numeric characters space and dot are allowed ");
            break; 
        }   		
    }//switch 
    return ret; 
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/