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 E-Mail Address")
		   return false
		}

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

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

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

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

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

 		 return true					
	}

function ValidateForm(){
	var emailID=document.getElementById('frmeposta')
	var isimID=document.getElementById('frmad')
	
	if ((isimID.value==null)||(isimID.value=="")||(isimID.value=="Name")){
		alert("Please write your Name")
		isimID.focus()
		return false
	}
	if ((emailID.value==null)||(emailID.value=="")||(isimID.value=="E-mail")){
		alert("Please write your E-Mail Address")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		//emailID.value=""
		emailID.focus()
		return false
	}

	return true
 }