<!-------------------------OnMouseover Graphics----------------------------------->
if (document.images) {
// "On"-Grafiken
img1on = new Image();
img1on.src = "./images/bayhost_logo_anim.gif";

// "Off"-Grafiken
img1off = new Image();
img1off.src = "./images/bayhost-logo2.gif";
}

function imgOn(imgName) {
if (document.images) {
document.images[imgName].src = eval(imgName + "on.src");
}
}
function imgOff(imgName) {
if (document.images) {
document.images[imgName].src = eval(imgName + "off.src");
}
}
<!-------------------------End OnMouseover Graphics---------------------->

<!-------------------------Jump Menu------------------------------------->
function MMX_jumpMenu(selObj,restore){ 
var theFullString = selObj.options[selObj.selectedIndex].value;
if (restore) selObj.selectedIndex=0;
var theLength = theFullString.length;
var endPos = theFullString.lastIndexOf("~");
var theUrl, theTarget, theParent;
if (endPos > 0) {theUrl = theFullString.substring(0,endPos);}
else {theUrl = theFullString;}
endPos++
if (endPos < theLength) {theTarget = theFullString.substring(endPos,theLength)}
else {theTarget = "window:Main";}
if (theTarget == "window:New") {window.open(theUrl);}
else if (theTarget == "window:Main") {eval("parent.location='"+theUrl+"'");}
else {eval("parent.frames[\'"+theTarget+"\'].location='"+theUrl+"'");}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenuGo(selName,restore){ //v3.0
  var selObj = MM_findObj(selName); if (selObj) MMX_jumpMenu(selObj,restore);
}

function MM_jumpMenu(targ,selObj,restore){ 
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

<!-------------------------End Jump Menu--------------------------------->