function showWindow(URL){
	var screenHeight=screen.height-150;
	var screenWidth=screen.width-11;
	if (screenHeight > 300) screenHeight =  300;
	if (screenWidth > 550) screenWidth = 550;
	newWindow=window.open(URL,"popup","resizable,scrollbars=yes,left=5,top=0,width="+ screenWidth + ",height=" + screenHeight); 
	newWindow.focus();
}