function emailCheck(email) {
		var at="@"
		var dot="."
		var lat=email.indexOf(at)
		var lemail=email.length
		var ldot=email.indexOf(dot)
     	if (lat == -1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (lat == -1 || lat==0 || email.indexOf(at)==lemail){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (ldot==-1 || ldot ==0 || ldot==lemail){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (email.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (email.substring(lat-1,lat)==dot || email.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (email.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (email.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var emailID=document.forms[0].txtEmail
	var name = document.forms[0].txtName

	if (name.value=="") {
	   alert("Please enter your Name")
	   name.focus();
	   return false;
	}   
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	
	if (emailCheck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return true
 }