function FP_preloadImgs() {//v1.0
 var d=document,a=arguments; if(!d.FP_imgs) d.FP_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i]; }
}

function FP_swapImg() {//v1.0
 var doc=document,args=arguments,elm,n; doc.$imgSwaps=new Array(); for(n=2; n<args.length;
 n+=2) { elm=FP_getObjectByID(args[n]); if(elm) { doc.$imgSwaps[doc.$imgSwaps.length]=elm;
 elm.$src=elm.src; elm.src=args[n+1]; } }
}

function FP_getObjectByID(id,o) {//v1.0
 var c,el,els,f,m,n; if(!o)o=document; if(o.getElementById) el=o.getElementById(id);
 else if(o.layers) c=o.layers; else if(o.all) el=o.all[id]; if(el) return el;
 if(o.id==id || o.name==id) return o; if(o.childNodes) c=o.childNodes; if(c)
 for(n=0; n<c.length; n++) { el=FP_getObjectByID(id,c[n]); if(el) return el; }
 f=o.forms; if(f) for(n=0; n<f.length; n++) { els=f[n].elements;
 for(m=0; m<els.length; m++){ el=FP_getObjectByID(id,els[n]); if(el) return el; } }
 return null;
}

function ContactSubmit(frm)
{
    if(!NotBlank(frm.first_name,'First Name')) {return false;}
	if(!NotBlank(frm.last_name,'Last Name')) {return false;}
    if(!NotBlank(frm.email_address,'E-mail Address')) {return false;}
	if(!check_emailval(frm.email_address,'E-mail Address')) {return false;}
    if(!NotBlank(frm.company_name,'Company Name')) {return false;}
	if(!CheckForWebSite(frm.web_site)) {return false;}
    if(!NotBlank(frm.city,'City')) {return false;}
    if(!NotBlank(frm.phone,'Phone')) {return false;}
    if(!NotBlank(frm.state,'State')) {return false;}
    if(!NotBlank(frm.number_of_locations,'Number of locations')) {return false;}
	if(!NotBlank(frm.zip_code,'Zip Code')) {return false;}
	if(!InterestedArea(frm)) {return false;}
	if(!NotBlank2(frm.project_goal,'Please list your Project Goals.')) {return false;}
	/*if(frm.web_site.value=="")
	{
		frm.web_site.value="N/A";
	}*/
}
function ArtistSubmit(frm)
{
    if(!NotBlank(frm.first_name,'First Name')) {return false;}
	if(!NotBlank(frm.last_name,'Last Name')) {return false;}
    if(!NotBlank(frm.email_address,'E-mail Address')) {return false;}
	if(!check_emailval(frm.email_address,'E-mail Address')) {return false;}
	if(!NotBlank(frm.company_name,'Company Name')) {return false;}
	if(!CheckForWebSite(frm.web_site)) {return false;}
    if(!NotBlank(frm.city,'City')) {return false;}
    if(!NotBlank(frm.phone,'Phone')) {return false;}
    if(!NotBlank(frm.state,'State')) {return false;}
	if(!NotBlank(frm.country,'Country')) {return false;}
	if(!NotBlank(frm.zip_code,'Zip Code')) {return false;}
	if(!MaterialQuestion(frm.material)) {return false;}
	if(!NotBlank2(frm.comment,'Tell us anything specific you would like us to know.')) {return false;}
	/*if(frm.web_site.value=="")
	{
		frm.web_site.value="N/A";
	}*/
}
function NotBlank(obj,cap)
{
	
	if(obj.value=="")
	{
		alert(cap + " is required.");
		obj.focus();
		return false;
	}
	return true;
}
function NotBlank2(obj,message)
{
	
	if(obj.value=="")
	{
		alert(message);
		obj.focus();
		return false;
	}
	return true;
}
function InterestedArea(frm)
{
	var rtnbool=false;
	if(frm.interested_area1.checked==true)
		rtnbool=true;
	
	if(frm.interested_area2.checked==true)
		rtnbool=true;
	
	if(frm.interested_area3.checked==true)
		rtnbool=true;
	
	if(frm.interested_area4.checked==true)
		rtnbool=true;
	
	if(rtnbool==false)
	{
		alert("Please select at least one interest area.");
		return false;
	}else{
		return true;
	}
}
function check_emailval(obj,cap)
{
	var em=obj.value;
	if(obj.value=="")
	{
		alert(cap+" is required.");
		obj.focus();
		return false;
	}
	atspos=em.indexOf('@') + 1;
	dtspos=em.lastIndexOf('.');
	len=em.length-3;
	if(atspos < 2 || dtspos < 3  ||dtspos <= atspos || len<dtspos)
	{
		alert("Enter Valid E-mail Address.");
		obj.focus();
		return false;
	}
	return true;
}
function CheckForWebSite(obj)
{
	if(obj.value=="")
	{
		alert("Enter N/A if you do not have a web site.")
		obj.focus();
		return false;
	}
	return true;
}
function MaterialQuestion(obj)
{
	bool=false;
	for(i=0;i<=obj.length-1;i++)
	{
		if(obj[i].checked==true)
		{
			bool=true;
		}
	}
	if(bool==false)
	{
		alert("A response to the question about copyright is required.");
		return false;		
	}
	return true;
}