function validateFrom(form1) {

	if(form1.u_name.value=="")
	{
		alert("Please enter name!");
		form1.u_name.focus();
		return false;
	}
	if(form1.u_email.value == "")
	{
		alert("Please enter email address!");
		form1.u_email.focus();
		return false;
	}
	if ( !isValidEmail( form1.u_email.value ) ) {
		alert ( 'Invalid email address!' );
		form1.u_email.focus();
		return false;
	} 
	if(form1.subject.value=="")
	{
		alert("Please enter subject!");
		form1.subject.focus();
		return false;
	}
	if(form1.message.value=="")
	{
		alert("Please enter comments!");
		form1.message.focus();
		return false;
	}
}