var emailValidation = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
var only_chars		= /^[a-zA-z\s]+$/;
var only_nums		= /^[0-9\.]+$/;

function validate_form()
{
	if(document.getElementById("name").value == "")
	{
		window.alert("Enter Your name");
		document.getElementById("name").focus();
		return false;
	}
	if(document.getElementById("email").value == "")
	{
		window.alert("Enter Email address");
		document.getElementById("email").focus();
		return false;
	}
	if(document.getElementById("email").value!="")
	{
		if(!(document.getElementById("email").value.match(emailValidation)))
		{
		alert("Please Enter Valid Email Id.");
		document.getElementById("email").focus();
		return false;
		}
	}
	if(document.getElementById("message").value == "")
	{
		window.alert("Enter Your message");
		document.getElementById("message").focus();
		return false;
	}
	if(document.getElementById("security_code").value == "")
	{
		window.alert("Enter Security Code!");
		document.getElementById("security_code").focus();
		return false;
	}
}