// JavaScript Document
var emailOK = 0;
function verifyEmail(){     
var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
     if (document.emailForm.email1.value != '') {
		 if (emailOK==0) $('submit_link').style.backgroundPosition="-80px 0";
		 emailOK=1;
     }
	 else {
		 if (emailOK==1) $('submit_link').style.backgroundPosition="0 0";
		 emailOK=0;
	 }
}

/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

function echeck(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){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
	}

function ValidateEmail(){
	var emailID=document.emailForm.email1
	
	if ((emailID.value==null)||(emailID.value=="")){
		if (emailOK==1) $('submit_link').style.backgroundPosition="0 0";
		emailOK=0;
	}
	else if (echeck(emailID.value)==false){
		if (emailOK==1) $('submit_link').style.backgroundPosition="0 0";
		emailOK=0;
	}
	else {
		if (emailOK==0) $('submit_link').style.backgroundPosition="-80px 0";
		emailOK=1;	
	}
 }