function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		clients_05_o = newImage("/images/blumberg_home-ovr.gif");
		clients_06_o = newImage("/images/blumberg_search-ovr.gif");
		clients_07_o = newImage("/images/blumberg_wanted-ovr.gif");
		clients_08_o = newImage("/images/blumberg_surplus-ovr.gif");
		clients_09_o = newImage("/images/blumberg_new-ovr.gif");
		clients_10_o = newImage("/images/blumberg_about-ovr.gif");
		clients_11_o = newImage("/images/blumberg_contact-ovr.gif");
		preloadFlag = true;
	}
}

if (document.images){
	button0=new Image();
	button1=new Image();
	button2=new Image();
	button3=new Image();
	button4=new Image();
	button5=new Image(); 
	button6=new Image(); 
	button7=new Image(); 
	button0.src="/images/Invisible_Map.gif"; 
	button1.src="/images/About_On.gif";
	button2.src="/images/Clients_On.gif";
	button3.src="/images/Contact_On.gif";
	button4.src="/images/Services_On.gif";
	button5.src="/images/Careers_On.gif";	
	button6.src="/images/Red_Arrow.gif";
	button7.src="/images/Red_Arrow_Invisible.gif";
}   	

function switchImg(num) {
 if (document.images){ 
   if (num=="0") document.topNav.src=button0.src; 
   if (num=="1") document.topNav.src=button1.src; 
   if (num=="2") document.topNav.src=button2.src;
   if (num=="3") document.topNav.src=button3.src;
   if (num=="4") document.topNav.src=button4.src;
   if (num=="5") document.topNav.src=button5.src; 
   if (num=="6") document.topNav.src=button6.src;
   if (num=="7") document.topNav.src=button7.src;     
 }
}
function getArrow(arrow){
	document[arrow].src = button6.src;
}
function returnArrow(arrow){
	document[arrow].src = button7.src;
}