// Input	: emailStr (email string to evaluate)
	// Output	: true 	-> if email has correct format
	//		  false	-> if email has wrong format
	// Purpose	: to validate an email format
	function OldisValidEmail (emailStr) 
	{
		
		var emailPat=/^(.+)@(.+)$/
		var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
		var validChars="\[^\\s" + specialChars + "\]"
		var quotedUser="(\"[^\"]*\")"
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
		var atom=validChars + '+'
		var word="(" + atom + "|" + quotedUser + ")"
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

		var matchArray=emailStr.match(emailPat)
		if (matchArray==null) {
			alert("Email address seems incorrect (check @ and .'s)")
			return false;
		}
		var user=matchArray[1]
		var domain=matchArray[2]

		if (user.match(userPat)==null) {    
			alert("The username doesn't seem to be valid.")
			return false
		}

		var IPArray=domain.match(ipDomainPat)
		if (IPArray!=null) {
      			for (var i=1;i<=4;i++) {
	    			if (IPArray[i]>255) {
					    alert("Destination IP address is invalid!");
					return false;
	    			}
	  		}
	  		return true;
		}

		// Domain is symbolic name
		var domainArray=domain.match(domainPat)
		if (domainArray==null) {
			alert("The domain name doesn't seem to be valid.");
			return false;
		}

		var atomPat=new RegExp(atom,"g");
		var domArr=domain.match(atomPat);
		var len=domArr.length;
		if (domArr[domArr.length-1].length<2 || 
			domArr[domArr.length-1].length>3) {   
			alert("The address must end in a three-letter domain, or two letter country.");
			return false;
		}

		if (len<2) {
			var errStr="This address is missing a hostname!";
			alert(errStr);
			return false;
		}

		// If we've gotten this far, everything's valid!
		return true;
  	}
	
	
 // Input	: emailStr (email string to evaluate)
	// Output	: true 	-> if email has correct format
	//		  false	-> if email has wrong format
	// Purpose	: to validate an email format
	function isValidEmail (str)
	{
		  str = str;
		  var at="@"
		  var dot="."
		  var lat=str.indexOf(at)
		  var lstr=str.length
		  var ldot=str.indexOf(dot)
		  if (str.indexOf(at)==-1){
		    return false;
		  }

		  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		    alert("Please enter valid email.")
			return false;
		  }

		  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		      alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(at,(lat+1))!=-1){
		      alert("Please enter valid email.")
			  return false;
		  }

		  if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		      alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(dot,(lat+2))==-1){
		      alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(" ")!=-1){
		      alert("Please enter valid email.")
			  return false;
		  }
	
		var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,10}(?:\.[a-z]{2})?)$/i
		if (filter.test(str))
		{
			return true;
		}
		else{
			alert("Please enter valid email.")
			return false;
		}
	}

	function isValidEmail2 (str)
	{
		  str = str;
		  var at="@"
		  var dot="."
		  var lat=str.indexOf(at)
		  var lstr=str.length
		  var ldot=str.indexOf(dot)
		  if (str.indexOf(at)==-1){
		    return false;
		  }

		  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		 //   alert("Please enter valid email.")
			return false;
		  }

		  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		 //     alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(at,(lat+1))!=-1){
		 //     alert("Please enter valid email.")
			  return false;
		  }

		  if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		//      alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(dot,(lat+2))==-1){
		 //     alert("Please enter valid email.")
			  return false;
		  }

		  if (str.indexOf(" ")!=-1){
		//      alert("Please enter valid email.")
			  return false;
		  }
	
		var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,10}(?:\.[a-z]{2})?)$/i
		if (filter.test(str))
		{
			return true;
		}
		else{
		//	alert("Please enter valid email.")
			return false;
		}
	}	
	
	function isUSAZIP(alphane)
	{
		
		var numaric = alphane
		for(var j=0; j < numaric.length; j++)
		{
			var alphaa = numaric.charAt(j);
			
					
			var hh = alphaa.charCodeAt(0);
			// - and 0-9
			if( (hh == 45) || (hh > 47 && hh < 59) )
			{
				
				if ((j == 5) && (hh != 45)) {
					return false;
				}
				
				if ((j != 5) && (hh == 45)) {
					return false;
				}
			}
			else{
				return false;
			}
		}
		return true;
	}
    
    // Validate Social Security Number
    function validateSSN( strValue ) {
        var objRegExp  = /^\d{3}\-\d{2}\-\d{4}$/;
     
        //check for valid SSN
        return objRegExp.test(strValue);
    }	
    
    function validateUSDate( strValue ) {
    /************************************************
            DESCRIPTION: Validates that a string contains only 
                valid dates with 2 digit month, 2 digit day, 
                4 digit year. Date separator can be ., -, or /.
                Uses combination of regular expressions and 
                string parsing to validate date.
                Ex. mm/dd/yyyy or mm-dd-yyyy or mm.dd.yyyy
                
            PARAMETERS:
               strValue - String to be tested for validity
               
            RETURNS:
               True if valid, otherwise false.
               
            REMARKS:
               Avoids some of the limitations of the Date.parse()
               method such as the date separator character.
            *************************************************/
      var objRegExp = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{4}$/
     
      //check to see if in correct format
      if(!objRegExp.test(strValue))
        return false; //doesn't match pattern, bad date
      else
      {
            var arrayDate = strValue.split(RegExp.$1); //split date into month, day, year
        	var intDay = parseInt(arrayDate[1],10); 
        	var intYear = parseInt(arrayDate[2],10);
            var intMonth = parseInt(arrayDate[0],10);
            var booLeapYear = (intYear % 4 == 0 && (intYear % 100 != 0 || intYear % 400 == 0));
        	
        	//check for valid month
        	if(intMonth > 12 || intMonth < 1) {
        		return false;
        	}
        	
            //create a lookup for months
            var arrayLookup = new Array();
            
            arrayLookup[ 1 ] = 31;
            if (booLeapYear) {
                arrayLookup[ 2 ] = 29;
            } else {
                arrayLookup[ 2 ] = 28;
            }
                
            arrayLookup[ 3 ] = 31;
            arrayLookup[ 4 ] = 30;
            arrayLookup[ 5 ] = 31;
            arrayLookup[ 6 ] = 30;
            arrayLookup[ 7 ] = 31;
            arrayLookup[ 8 ] = 31;
            arrayLookup[ 9 ] = 30;
            arrayLookup[ 10] = 31;
            arrayLookup[ 11] = 30;
            arrayLookup[ 12] = 31;
            
            if (intDay > arrayLookup[ intMonth ]) {
                return false;
            }
            
            return true; 
      }
        
    }
    
    function ValidGPA(pObj)
	{
		if (!pObj) return false;
		if (pObj.value == "") return false;
		if (isNaN(pObj.value)) return false;
		
		if (parseFloat(pObj.value) < 0 || parseFloat(pObj.value) > 4.0) 
		    return false;
		
		// var objGPAReg = /([1-3]([.][0-9]*)?|4([.][0])?)/;
		// var objGPAReg = /([1-3]([.][0-9][0-9])?|4([.][0])?)/;
		var objGPAReg = /^[0]|[0-3]\.(\d?\d?)|[4].[0]$/;
		
		return objGPAReg.test( pObj.value );
	}
    
	// add Nov 28 2008 - DW
	function validateUSPhone(pValue) {	      
		var objRegExp = /^((\+\d{1,3}(-| )?\(?\d\)?(-| )?\d{1,3})|(\(?\d{2,3}\)?))(-| )?(\d{3,4})(-| )?(\d{4})$/
		
		return objRegExp.test(pValue);
	}
	
	function IsNumeric2(sText)
	{
		var ValidChars = "0123456789";
		var IsNumber   = true;
		var Char;
	
		for (i = 0; i < sText.length && IsNumber == true; i++) 
		{ 
			Char = sText.charAt(i); 
			if ((i == 0) && (Char == "-")) { 	// check first character for minus sign
				IsNumber = false;
			}	
			else if (ValidChars.indexOf(Char) == -1) IsNumber = false;
		}
		return IsNumber;
	}
	
	function KeyCheck(e)
	{
		var KeyID = (window.event) ? event.keyCode : e.which;
		if((KeyID >= 65 && KeyID <= 90) || (KeyID >= 97 && KeyID <= 122) || (KeyID >= 33 && KeyID <= 47) ||
		   (KeyID >= 58 && KeyID <= 64) || (KeyID >= 91 && KeyID <= 96) || (KeyID >= 123 && KeyID <= 126))
		{
			return false;
		}
		return true;
	}
	
    function ValidScore(pObj)
	{
		if (!pObj) return false;
		if (pObj.value == "") return false;
		if (isNaN(pObj.value)) return false;
		
		if (parseFloat(pObj.value) < 1 || parseFloat(pObj.value) > 4.0) 
		    return false;
			
		if (pObj.value.length > 4) return false;
		
		//var objScoreReg = /^[0]|[1-3]\.(\d?\d?)|[4].[0]$/;
		var objScoreReg = /([1-3]([.][0-9]*)?|4([.][0])?)/;
		
		return objScoreReg.test( pObj.value );
	}