/* image rollover functions */

function roll(id, newSrc) {
    var theImage = findImage(document, id, 0);
    if (theImage) theImage.src = newSrc;
}

function findImage(doc, name, j) {
    var theImage = false;
    if (doc.images) theImage = doc.images[name];
    if (theImage) return theImage;
    if (doc.layers) {
        for (j = 0; j < doc.layers.length; j++) {
            theImage = findImage(doc.layers[j].document, name, 0);
            if (theImage) return (theImage);
        }
    }
    return (false);
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function show(object) {
  var obj = findObj(object);
  if (obj != null)
	{
    obj = (obj.style) ? (obj.style):obj;
    obj.display = "block";
    obj.visibility = "visible";
   }
}

function hide(object) {
  var obj = findObj(object);
	if (obj != null)
	{
     obj = (obj.style) ? (obj.style):obj;
	  obj.display = "none";
     obj.visibility = "hidden";  	 
	}
}

function writeInnerHTML(objDiv,strHtml){
	var obj = findObj(objDiv);
	if (obj != null) obj.innerHTML = strHtml;
}

function openPopup(theURL,width,height, scrollbars) {
    x = (640 - width)/2, y = (480 - height)/2;

    if (screen) {
        y = (screen.availHeight - height)/2;
        x = (screen.availWidth - width)/2;
    }

    popwin = window.open(theURL,'HiltonWin','width='+width+',height='+height+',screenX='+x+',screenY='+y+',top='+y+',left='+x+',scrollbars='+scrollbars+',status=no,resizable=no');
}