function $( id )  {
  return document.getElementById( id );
}

function showpopup(url)
{
        var Win = window.open(url,'showpic','width=100,height=100,top=50,left=200,resizable=0,scrollbars=no,menubar=no,toolbar=no,status=no')
}

function help ( content)
{
	if (content != '') return overlib (content);
}

function doff()
	{
 		return nd();
	}


function switchDisplay(el)
{
	var target=el;
	if ( $(target).style.display=="none")
	{
   $(target).style.display="block";
	 oldel="";
	}
	else
	{
	 $(target).style.display="none";
	 $(target).style.position="relative";
	}

}

function podswietl(id,class)  {
	$('tr'+id).className=class;
}