function popup(page,name,width,height)
{
	var url,fmenu,fresize,ftoolbar,flocationbar,fstatus,fscrollbars,pos_top,pos_left,dependent;
	//alert('Übergebene id\n'+id);
	url = page; //encodeURIComponent(id) ;
	fmenu = 'no' ;
	fresize = 'yes' ;
	ftoolbar = 'no' ;
	flocationbar = 'no' ;
	fstatus = 'no' ;
	if (screen.availHeight < height) {
		fscrollbars = 'yes' ;
		height = screen.availHeight;
		width = parseInt(width) + 10; //wg zusätzlicher Scrollbar
	} else {
		fscrollbars = 'no' ;
	}
	dependent = 'yes' ;
	pos_top = 0 ;
	pos_left = 0 ;
	//alert(url);
	//var fenster = neues_fenster(url,breite,hoehe,name,fmenu,fresize,ftoolbar,flocationbar,fstatus,fscrollbars,pos_top,pos_left);
	var fenster = window.open(url, name, 'width='+width+',height='+height+',top='+pos_top+',left='+pos_left+',menubar='+fmenu+',resizable='+fresize+',toolbar='+ftoolbar+',location='+flocationbar+',status='+fstatus+',scrollbars='+fscrollbars+',dependent='+dependent);
	fenster.focus();
	//fenster.resizeTo(width,height);
}

function clickButton(e, buttonid)
{
      var evt = e ? e : window.event;
      var bt = document.getElementById(buttonid);
      
      if (bt)
      { 
          if (evt.keyCode == 13)
          { 
               bt.click(); 
               return false; 
          } 
     } 
}