function validateForm()
{
	trimFields();

	if(obj.first_name.value == "")
	{
		alert("Please enter your First Name.");
		obj.first_name.focus();
		return;
	}
	if(obj.last_name.value == "")
	{
		alert("Please enter your Last Name.");
		obj.last_name.focus();
		return;
	}
	if(obj.email.value == "")
	{
		alert("Please enter your Email ID.");
		obj.email.focus();
		return;
	}
	if(!chkEmail(obj.email.value))
	{
		alert("Invalid Email ID!\nPlease review and correct it.");
		obj.email.focus();
		obj.email.select();
		return;
	}
	if(obj.comments.value == "")
	{
		alert("Please enter your Comments.");
		obj.comments.focus();
		return;
	}
	if(obj.captcha.value == "")
	{
		alert("Please enter security code correctly");
		obj.captcha.focus();
		return;
	}
	//All ok
	obj.action = "contact_us.html";
	obj.submit();
}