var pFenster = null;
function pWindow(datei){

    if (pFenster && pFenster.closed){
        pFenster = null;
    }

    if(!pFenster){
        options = "menubar=1,scrollbars=1,width=540,height=680";
        pFenster=window.open(datei,'pWindow',options);	
        pFenster.focus()
    }
   else{
        pFenster.focus();
   }

}



function showBookmarks(visible){
  if(visible) {         
	var obj = document.getElementById("bookmarks_pic");
	var pos = {left:0, top:0};	
	if(typeof obj.offsetLeft != 'undefined') {
	   while (obj)    {
	       pos.left += obj.offsetLeft;
	       pos.top += obj.offsetTop;
	       obj = obj.offsetParent;
	   }
	}
	else {
	   pos.left = obj.left ;
	   pos.top = obj.top ;
	}  
	
    var height = document.getElementById("bookmarks").offsetHeight;
    var top = pos.top - height; 
 	var left = pos.left + 5; 
 
    document.getElementById("bookmarks").style.visibility = "visible";   
    document.getElementById("bookmarks").style.top = top+'px';  
    document.getElementById("bookmarks").style.left = left+'px';  
  }
  else {
    document.getElementById("bookmarks").style.visibility = "hidden";  
  }
}