/**
 * @author Patrick Arnold
 */


//preload images for nav
var aryImages = new Array(10);
aryImages[0] = "nav_home.gif";
aryImages[1] = "nav_about.gif";
aryImages[2] = "nav_resources.gif";
aryImages[3] = "nav_services.gif";
aryImages[4] = "nav_contact.gif";
aryImages[5] = "nav_home_rollover.gif";
aryImages[6] = "nav_about_rollover.gif";
aryImages[7] = "nav_resources_rollover.gif";
aryImages[8] = "nav_services_rollover.gif";
aryImages[9] = "nav_contact_rollover.gif";

for (i=0; i < aryImages.length; i++) {
	var preload = new Image();
	preload.src = "images/" + aryImages[i];
}

//swaps image and background
function swapNav(elem, newImg, bgColor){
	var currentImg = elem.getElementsByTagName("img").item(0);
	
	currentImg.src = "images/" + aryImages[newImg];
	elem.style.backgroundColor = bgColor;
}