startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("navigation_top");

		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];

			if (node.nodeName=="LI") {

				node.onmouseover=function() {
					this.className+=" over";
					
				}
  				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
   			}
  		}
 	}
}

window.onload=startList;
function settopopup(linkid, winwidth, winheight) {

    if (!document.getElementById) return false;
    if (!document.getElementById(linkid)) return false;

    var mylink = document.getElementById(linkid);
    var mylinkurl = mylink.getAttribute("href");
    var mylinktitle = mylink.getAttribute("title");
    var myparams = "width=" + winwidth + ",height=" + winheight + ",status=no,toolbar=no,menubar=no,location=no";

    mylink.onclick = function() {
        window.open(mylinkurl, mylinktitle, myparams);
        return false;
    }

}

function preloadHeaderImages() {

    if (!document.images) return false;


}

function addLoadEvent(func) {

    var oldonload = window.onload;
    if (typeof window.onload != 'function') {

        window.onload = func;

    } else {

        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        }
    }
}

addLoadEvent(function() {
    preloadHeaderImages();
});

function vid_switch()
{
    var option = ['vid_static', 'vid_live'];
    for (var i = 0; i < option.length; i++) {
        obj = document.getElementById(option[i]);
        obj.className = (obj.className == "visible") ? "hidden" : "visible";
    }
};