function OpenWindow(navigateUrl) {
  var winWidth;
  var winHeight;
  var winParams;

  winWidth = screen.availWidth * 0.8;		// gew. Faktor f. Fensterbreit einsetzen
  winHeight = screen.availHeight * 0.8;	// gew. Faktor f. Fensterhöhe einsetzen

  winParams = 'width=' + winWidth + ',height=' + winHeight + 'scrollbars=no'; 
	// left=0,top=0
	// scrollbars=yes/no
	// resizable=yes/no
	// menubar=yes/no
	// toolbar=yes/no
	// status=yes/no

  myWindow = window.open(navigateUrl,'PopUp',winParams);
  myWindow.focus();
  return false;
}


function OpenWindow(navigateUrl, width, height) {
  var winParams;

  winParams = 'width=' + width + ',height=' + height + 'scrollbars=no'; 

  myWindow = window.open(navigateUrl,'PopUp',winParams);
  myWindow.focus();
  return false;
}