function preLoadNav(){

		NA1 = new Image;
		NA1.src = "../images/nav/it_g05l.gif";
		NA2 = new Image;
		NA2.src = "../images/nav/it_g05h.gif";
		NB1 = new Image;
		NB1.src = "../images/nav/it_g06l.gif";
		NB2 = new Image;
		NB2.src = "../images/nav/it_g06h.gif";
		NC1 = new Image;
		NC1.src = "../images/nav/ilp_g03l.gif";
		NC2 = new Image;
		NC2.src = "../images/nav/ilp_g03h.gif";
		ND1 = new Image;
		ND1.src = "../images/nav/ilp_g05l.gif";
		ND2 = new Image;
		ND2.src = "../images/nav/ilp_g05h.gif";
		SA0 = new Image;
		SA0.src = "../images/nav/is_g01l.gif";
		SB0 = new Image;
		SB0.src = "../images/nav/is_g01h.gif";
		SA1 = new Image;
		SA1.src = "../images/nav/is_g020l.gif";
		SB1 = new Image;
		SB1.src = "../images/nav/is_g020h.gif";
		SA2 = new Image;
		SA2.src = "../images/nav/is_g021l.gif";
		SB2 = new Image;
		SB2.src = "../images/nav/is_g021h.gif";
		SA3 = new Image;
		SA3.src = "../images/nav/is_g030l.gif";
		SB3 = new Image;
		SB3.src = "../images/nav/is_g030h.gif";
		SA4 = new Image;
		SA4.src = "../images/nav/is_g031l.gif";
		SB4 = new Image;
		SB4.src = "../images/nav/is_g031h.gif";
		SA5 = new Image;
		SA5.src = "../images/nav/is_g032l.gif";
		SB5 = new Image;
		SB5.src = "../images/nav/is_g032h.gif";
		SA6 = new Image;
		SA6.src = "../images/nav/is_g033l.gif";
		SB6 = new Image;
		SB6.src = "../images/nav/is_g033h.gif";
		SA7 = new Image;
		SA7.src = "../images/nav/is_g034l.gif";
		SB7 = new Image;
		SB7.src = "../images/nav/is_g034h.gif";
		SA8 = new Image;
		SA8.src = "../images/nav/is_g035l.gif";
		SB8 = new Image;
		SB8.src = "../images/nav/is_g035h.gif";
		SA9 = new Image;
		SA9.src = "../images/nav/is_g036l.gif";
		SB9 = new Image;
		SB9.src = "../images/nav/is_g036h.gif";
		
		SA10 = new Image;
		SA10.src = "../images/nav/is_g050l.gif";
		SB10 = new Image;
		SB10.src = "../images/nav/is_g050h.gif";
		SA11 = new Image;
		SA11.src = "../images/nav/is_g052l.gif";
		SB11 = new Image;
		SB11.src = "../images/nav/is_g052h.gif";
		SA12 = new Image;
		SA12.src = "../images/nav/is_g07l.gif";
		SB12 = new Image;
		SB12.src = "../images/nav/is_g07h.gif";
		SA13 = new Image;
		SA13.src = "../images/nav/is_g06l.gif";
		SB13 = new Image;
		SB13.src = "../images/nav/is_g06h.gif";
}

function hiLiteNav(imgDocID,imgObjName) {
	
		document.images[imgDocID].src = eval(imgObjName + ".src")
}

preLoadNav();