function getLink(li){
var destination = li.firstChild.href;
window.open(destination, "_self");
}
function rollingAround(img, newSrc){
var curFile = img.src;
var fileNamePos = (curFile.lastIndexOf("/")) + 1;
var output = curFile.substring(0, fileNamePos) + newSrc;
img.src = output;
}