var next_photo_id=0;
var photo_urls={};
var imgLoading=new Image();
imgLoading.src='/Images/shim.gif';
function createPhotoTip(elem,url) {
 if (!yh_tt || !elem || elem.tt_div ) return ; // already initialized or not ready to initialize yet.
 var photo_id=photo_urls[url];
 if (!photo_id) {
  photo_id=++next_photo_id;
  photo_urls[url]=photo_id;
 }
 if ( !Dom.get('photo_tooltip_for_'+photo_id)) 
 {
    var d = document.createElement ( 'div' );
    d.className='tooltip';    
    // d.style.backgroundColor = "white";
    // d.style.padding = "10px";
    d.id='photo_tooltip_for_'+photo_id;
    var img=document.createElement ( 'img' );
    img.id='photo_for_'+photo_id;
    img.src=imgLoading.src;
    d.appendChild(img);
    
    var msg = document.createElement( 'div' );
    msg.style.color = "#949494";
    msg.style.fontSize = "12pt";
    msg.innerHTML = "<br><b>Click to choose this card</b>";
    d.appendChild(msg);
    
    document.body.appendChild(d);    
    var i=new Image();
    Event.on ( i, 'load', function(e) {
        img.src=i.src;
        img.width=i.width;
        img.height=i.height;
        // img.style.border = "solid black 2px";
    } 
    );
    i.src=url;
 }
 createTip ( elem, 'photo_tooltip_for_'+photo_id, false );
}