// JavaScript Document
var selectedID = "nav";

function SwapImage(img,state) {
    if(img != selectedID){
	eval("document." +img+ ".src='images/" +img + state+ ".jpg'");
	}
}
function navSelected(img,state){
	eval("document." +selectedID+ ".src='images/" +selectedID + ".jpg'");
	eval("document." +img+ ".src='images/" +img + state+ ".jpg'");
	selectedID = img;
	

}