/****************************************************************
 * Property of:	Usability Matrix				*
 * Author:	Peter Buniak					*
 * Date:	8/5/2003					*
 ****************************************************************/

//function to preload images on side nav
function loadImages(){

	aboutOff = new Image();
	aboutOff.src="images/nav/about_off.gif";
	aboutOver = new Image();
	aboutOver.src="images/nav/about_over.gif";

	clientsOff = new Image();
	clientsOff.src="images/nav/clients_off.gif";
	clientsOver = new Image();
	clientsOver.src="images/nav/clients_over.gif";

	contactOff = new Image();
	contactOff.src="images/nav/contact_off.gif";
	contactOver = new Image();
	contactOver.src="images/nav/contact_over.gif";

	homeOff = new Image();
	homeOff.src="images/nav/home_off.gif";
	homeOver = new Image();
	homeOver.src="images/nav/home_over.gif";

	missionOff = new Image();
	missionOff.src="images/nav/mission_off.gif";
	missionOver = new Image();
	missionOver.src="images/nav/mission_over.gif";

	partnersOff = new Image();
	partnersOff.src="images/nav/partners_off.gif";
	partnersOver = new Image();
	partnersOver.src="images/nav/partners_over.gif";

	servicesOff = new Image();
	servicesOff.src="images/nav/services_off.gif";
	servicesOver = new Image();
	servicesOver.src="images/nav/services_over.gif";

	articlesOff = new Image();
	articlesOff.src="images/nav/articles_off.gif";
	articlesOver = new Image();
	articlesOver.src="images/nav/articles_over.gif";
	
}

//rollover for the image in the left nav, excluding the one its in
function rollOver( theImg ){

	var on = ("document.images['" + theImg + "'].src");
	var sourceMe = eval(on);
	var theIndex = sourceMe.indexOf("images/nav/");
	var sourceMeLength = sourceMe.length;
	
	sourceMe = sourceMe.substring(theIndex,sourceMeLength);
	
	var shouldBeOn = "images/nav/" + theImg + "_on.jpg"
	
	if( sourceMe  != shouldBeOn){
		swapImage = eval(theImg + "Over");
		document.images[theImg].src = eval(theImg + "Over").src;
	}

}

//rollover for the image in the left nav, excluding the one its in
function rollOut( theImg ){
	
	var on = ("document.images['" + theImg + "'].src");
	var sourceMe = eval(on);
	var theIndex = sourceMe.indexOf("images/nav/");
	var sourceMeLength = sourceMe.length;
	
	sourceMe = sourceMe.substring(theIndex,sourceMeLength);
	
	var shouldBeOn = "images/nav/" + theImg + "_on.jpg"
	
	if( sourceMe  != shouldBeOn){
		swapImage = eval(theImg + "Off");
		document.images[theImg].src = eval(theImg + "Off").src;
	}
}