var newwindow;

function poptastic(url) {		  
  var left = (screen.width - 720) / 2;
	var top = (screen.height - 570) / 2;
  odmiki = ',left=' + left + ',top=' + top;
  	newwindow=window.open(url,'name','status=0,height=570,width=720' + odmiki);
  	if (window.focus) {newwindow.focus()}
}