var IE = (navigator.appName == "Microsoft Internet Explorer") ? 1 : 0;
var NS = (navigator.appName == "Netscape") ? 1 : 0;
var hideMenu = null;

function Hide(div){
if(IE)eval('document.all.'+div+'.style.visibility="hidden"');
if(NS)eval('document.layers.'+div+'.visibility="hidden"');
}


function Show(div){
if(IE)	eval('document.all.'+div+'.style.visibility="visible"');
if(NS)	eval('document.layers.'+div+'.visibility="visible"');
}

function imgOn(Num) {
hideAll();
if (document.images) {
document.images["b" +Num].src = eval("b" +Num+ "on.src")
}
}

function imgOff(Num) {
if (document.images) {
document.images["b" +Num].src = eval("b" +Num+ ".src")
}
}


//MenuMouseOver
function mImgOn(divNum,Num) {
clearTimeout(hideMenu);
if (document.images) {
if(IE){
document.images["m" +divNum+ "b" +Num].src = eval("m" +divNum+ "b" +Num+ "on.src")
}
if(NS){
document.layers["m"+divNum].document.images["m" +divNum+ "b" +Num].src = eval("m" +divNum+ "b" +Num+ "on.src")
}
}

}

function mImgOff(divNum,Num) {
if (document.images) {
if(IE){
document.images["m" +divNum+ "b" +Num].src = eval("m" +divNum+ "b" +Num+ ".src")
}
if(NS){
document.layers["m"+divNum].document.images["m" +divNum+ "b" +Num].src = eval("m" +divNum+ "b" +Num+ ".src")
}
}
hideMenu=setTimeout('hideAll()',500)
}


function hideAll(){
Hide('m1');
Hide('m2');
Hide('m3');
Hide('m4');
}


if(document.images){
for (i=1; i<=5; i++)
{
eval("b"+i+" = new Image()");eval("b"+i+".src = 'images/b"+i+".gif'");
eval("b"+i+"on = new Image()");eval("b"+i+"on.src = 'images/b"+i+"on.gif'");
eval("m1b"+i+" = new Image()");eval("m1b"+i+".src = 'images/m1b"+i+".gif'");
eval("m1b"+i+"on = new Image()");eval("m1b"+i+"on.src = 'images/m1b"+i+"on.gif'");
} 
for (i=1; i<=4; i++)
{
eval("m2b"+i+" = new Image()");eval("m2b"+i+".src = 'images/m2b"+i+".gif'");
eval("m2b"+i+"on = new Image()");eval("m2b"+i+"on.src = 'images/m2b"+i+"on.gif'");
}
for (i=1; i<=4; i++)
{
eval("m3b"+i+" = new Image()");eval("m3b"+i+".src = 'images/m3b"+i+".gif'");
eval("m3b"+i+"on = new Image()");eval("m3b"+i+"on.src = 'images/m3b"+i+"on.gif'");
}
for (i=1; i<=4; i++)
{
eval("m4b"+i+" = new Image()");eval("m4b"+i+".src = 'images/m4b"+i+".gif'");
eval("m4b"+i+"on = new Image()");eval("m4b"+i+"on.src = 'images/m4b"+i+"on.gif'");
}
}