/**
 * 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){		 
		   alert("You have entered an invalid email address. Please check your entry and correct it.")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){		   alert("You have entered an invalid email address. Please check your entry and correct it.")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){		   alert("You have entered an invalid email address. Please check your entry and correct it.")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){		   
		 	alert("You have entered an invalid email address. Please check your entry and correct it.")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){		   alert("You have entered an invalid email address. Please check your entry and correct it.")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){		   
		 	alert("You have entered an invalid email address. Please check your entry and correct it.")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){	
		 	alert("You have entered an invalid email address. Please check your entry and correct it.")
		    return false
		 }

 		 return true					
	}

function emailValidate(){
	var emailID=document.forms[0].email
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please enter your email address")
		emailID.focus()
//		return false
	} else if (echeck(emailID.value)==false){
//		emailID.value=""
		emailID.focus()		
//		return false
	}
//	return true
 }