function changeDisplay(off, on) {
	if (off && off != ""){ 
		document.getElementById(off).style.display = 'none';
		}
	if (on && on != ""){
		document.getElementById(on).style.display = 'block';
		}
}
function reset() {
document.contactus.name.value="";
document.contactus.email.value="";
document.contactus.cname.value="";
document.contactus.phone.value="";
document.contactus.zip.value="";
document.contactus.city.value="";
document.contactus.consumer.value="0";
document.contactus.architect.value="0";
document.contactus.designer.value="0";
document.contactus.contractor.value="0";
document.contactus.orderno.value="";
document.contactus.comment.value="0";
}
function validateEmail(email)
{
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\"?[\w-_\.]*\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null)
{
var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
function validate() {
if (document.contactus.name.value.length==0) {
alert("please enter your name");
return false;
}
if (document.contactus.email.value.length==0) {
alert("please enter your email address");
return false;
}
if(!validateEmail(document.contactus.email.value))
{
alert("please enter your valid email address");
return false;
}
//document.contactus.submit()
  changeDisplay ('contactForm','contact-thankyou');
return true;

}