function validate() {


nm=contact_us.name.value;
if (nm=='') {
alert('Your Name is a required field. Please try again.');
event.returnValue=false;
exit;
}


em=contact_us.email.value;
if (em=='') 
{
	alert('Your Email is a required field. Please try again.');
	event.returnValue=false;
	exit;
}
else
{
	 if (em.indexOf(' ')==-1 && 0<em.indexOf('@') && em.indexOf('@')+1 < em.length) 
	{
	event.returnValue=true;
	}	
	else 
	{
	alert ('Invalid email address!');
	event.returnValue=false;
	exit;
	}

}
if (contact_us.country.options[0].selected) {
alert('Please select your Country.');
event.returnValue=false;
exit;
}
if (contact_us.subject.options[0].selected) {
alert('Please select a Subject.');
event.returnValue=false;
exit;
}

ms=contact_us.message.value;
if (ms=='') {
alert('Your Message is a required field. Please try again.');
event.returnValue=false;
exit;
}

}