// JavaScript Document
	var winWidth = 700;
    var winHeight = 600;
    var winLeft = Math.round((screen.width - winWidth) / 2);
    var winTop= Math.round((screen.height - winHeight) / 2);
	
Fenster = null;
function petitionlist()
{
	  
 Fenster = window.open("http://www.artparade-stuttgart.de/petition/petition.php", "petition", "toolbar=no, menubar=no, scrollbars=yes, width=700, height=600")
// Fenster = window.open('petition/index.php', 'petition', 'width=' + winWidth + ',height=' + winHeight + ',left=' + winLeft + ',top=' + winTop, 'scrollbars=' + yes);
Fenster.focus();
}
function zu()
{
   if (Fenster != null)
     if (!Fenster.closed)
       Fenster.close();
}