function simplePreload()
{ 
	var args = simplePreload.arguments;
	document.imageArray = new Array(args.length);
	
	for(var i=0; i<args.length; i++)
	{
		document.imageArray[i] = new Image;
		document.imageArray[i].src = args[i];
	}
}

function newsletter_form1(obj)
{
	if(obj.newsemail.value=='')
	{
		alert("Enter your email address");
		obj.newsemail.focus();
		return false;
	}
	else if(obj.newsemail.value!='')
	{
		if(!validateNewEmail(obj.newsemail.value))
		{
			alert("Enter your valid email address");
			obj.newsemail.focus();
			return false;
		}	
	}
	myWindow = window.open('/newsl.php', '', 'height=150, width=550, resizable=yes, scrollbars=yes, left=200, top=200');
	return true;
}

function validateNewEmail(email)
{
	// a very simple email validation checking. 
	// you can add more complex email checking if it helps 
	if(email.length <= 0)
	{
		return true;
	}
	
	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;
}