var valid=true;

function validate_form()
{
	valid = true;
	
	if ( document.contactform.name.value == "" )
	{
		alert ( "Please enter your Name." );
		valid = false;
	}
	else if ( document.contactform.email.value == "" )
	{
		alert ( "Please enter your Email address." );
		valid = false;
	}
	else if ( document.contactform.phone.value == "" )
	{
		alert ( "Please enter your Phone number." );
		valid = false;
	}	
	
	return valid;
}