function displayWindow(url, width, height) {
  var Win = window.open(url,"displayWindow",'width=0' + width + ',height=0' + height + ',resizable=2,scrollbars=no,menubar=no' );
 }

function displayWindow2(url, width, height) {
  var Win = window.open(url,"displayWindow",'width=0' + width + ',height=0' + height + ',resizable=2,scrollbars=yes,menubar=no' );
 }


function rozwin(nazwa)
{
	if(document.getElementById(nazwa).style.display=='block')
	{ 
		document.getElementById(nazwa).style.display='none'; 
		document.getElementById(nazwa).style.visibility='hidden'; 
	} else { 
		document.getElementById(nazwa).style.display='block'; 
		document.getElementById(nazwa).style.visibility='visible' ;
	}
}