// 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("Invalid Email Address")
		return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("Invalid Email Address")
		return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid Email Address")
		return false
	}

	if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid Email Address")
		return false
	}

	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid Email Address")
		return false
	}

	if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid Email Address")
		return false
	}

	if (str.indexOf(" ")!=-1){
		alert("Invalid Email Address")
		return false
	}

	 return true
}

function ValidateEmail(){
	var Email=document.formK.Email

	if ((Email.value==null)||(Email.value=="")){
		alert("Please Enter your Email Address")
		Email.focus()
		return false
	}
	if (echeck(Email.value)==false){
		Email.value=""
		Email.focus()
		return false
	}
	return true
}