function OpenProductTypeHelp()
{
	w = 450;
	h = 400;
	newWin = window.open("index.php?action=search_product_types&is_popup=1", "win", "height="+h+",width="+w+",scrollbars=1,resizable=1,help=0,top=200, left=300");
	newWin.moveTo(screen.availWidth/2-(w/2),screen.availHeight/2-(h/2));
	newWin.focus();
}