function centerWindow(){
            var left = (screen.width - document.body.clientWidth) / 2;
            var top = (screen.height - document.body.clientHeight) / 2;
            window.moveTo(left, top-50);
        }

        function openAdminHW (url, height, width){
            var windowName = "admin";
            if(window.opener) {
				if(window.opener.window.opener){
				    windowName = "admin_level3";
				} else {
					windowName="admin_level2";
				}
			}

            var winleft = (screen.width - width) / 2;
            var winUp = (screen.height - height) / 2;
            winProp = 'width=' + width + ',height=' + height +
                ',left=' + winleft + ',top=' + winUp +
                ',scrollbars=yes, resizable=yes';

            var opts= "toolbar=no, scrollbars=yes, resizable=yes" + ", width=" + width + ", height=" + height;
            //alert(opts);
            var pop = window.open(url, windowName, winProp);
            pop.focus();
        }


        function openAdmin(url) {
            openAdminHW(url, 450, 575);
        }

        function openAdminTall(url) {
            openAdminHW(url, 600, 575);
        }

		function openAdminH(url, height){
		 	openAdminHW(url, height, 575);
		}