Method renderOverlay

public static function renderOverlay()
{
    $s = array();
    $s[] = '		var phOverlay = jQuery(\'<div id="phOverlay"><div id="phLoaderFull"> </div></div>\');';
    $s[] = '		phOverlay.appendTo(document.body);';
    $s[] = '		jQuery("#phOverlay").fadeIn().css("display","block");';
    return implode("\n", $s);
}