// JavaScript Document

function validateEmailv2(email){
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
	return false;}
function validate(){
	var d = document.form1;
	if(d.name.value == ""){
		alert("Name is required");
		d.name.focus();
		return false;
	}	
		if(d.email.value == ""){
		alert("Email is required");
		d.email.focus();
		return false;
	}
	
	if(d.email.value!=""){
		var x=validateEmailv2(d.email.value);
		if(x){}else{alert("Please enter a valid email ID");d.email.focus();return false;}
	}

	if(d.comment.value == ""){
		alert("Comment is required");
		d.comment.focus();
		return false;
	}	
	d.submit();
 return true;
 
 
}