function validateForm()
{
	
	var name = document.getElementById('name').value;
	if(Trim(name) == "")
	{
		alert("Please specify your name.");
		document.getElementById('name').focus();
		return false;
	}

	var email = document.getElementById('email').value;
	if(Trim(email) == "")
	{
		alert("Please specify your email.");
		document.getElementById('email').focus();
		return false;
	}

	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(email)) {
		alert('Please specify valid email address');
		return false;
	}
	var message = document.getElementById('message').value;
	if(Trim(message) == "")
	{
		alert("Please specify your message.");
		document.getElementById('message').focus();
		return false;
	}

	
	return true;
}


function Trim(str)
{
   return str.replace(/^\s*|\s*$/g,"");
}