jQuery.fn.popupwindow = function(p)
    {

        var profiles = p || {};

        return this.each(function(index){
            var settings, parameters, mysettings, b, a, winObj;
		
            // for overrideing the default settings
            mysettings = (jQuery(this).attr("rel") || "").split(",");

		
            settings = {
                height:600, // sets the height in pixels of the window.
                width:600, // sets the width in pixels of the window.
                toolbar:0, // determines whether a toolbar (includes the forward and back buttons) is displayed {1 (YES) or 0 (NO)}.
                scrollbars:0, // determines whether scrollbars appear on the window {1 (YES) or 0 (NO)}.
                status:0, // whether a status line appears at the bottom of the window {1 (YES) or 0 (NO)}.
                resizable:1, // whether the window can be resized {1 (YES) or 0 (NO)}. Can also be overloaded using resizable.
                left:0, // left position when the window appears.
                top:0, // top position when the window appears.
                center:0, // should we center the window? {1 (YES) or 0 (NO)}. overrides top and left
                createnew:1, // should we create a new window for each occurance {1 (YES) or 0 (NO)}.
                location:0, // determines whether the address bar is displayed {1 (YES) or 0 (NO)}.
                menubar:0, // determines whether the menu bar is displayed {1 (YES) or 0 (NO)}.
                onUnload:null // function to call when the window is closed
            };

            // if mysettings length is 1 and not a value pair then assume it is a profile declaration
            // and see if the profile settings exists

            if(mysettings.length == 1 && mysettings[0].split(":").length == 1)
            {
                a = mysettings[0];
                // see if a profile has been defined
                if(typeof profiles[a] != "undefined")
                {
                    settings = jQuery.extend(settings, profiles[a]);
                }
            }
            else
            {
                // overrides the settings with parameter passed in using the rel tag.
                for(var i=0; i < mysettings.length; i++)
                {
                    b = mysettings[i].split(":");
                    if(typeof settings[b[0]] != "undefined" && b.length == 2)
                    {
                        settings[b[0]] = b[1];
                    }
                }
            }

            // center the window
            if (settings.center == 1)
            {
                settings.top = (screen.height-(settings.height + 110))/2;
                settings.left = (screen.width-settings.width)/2;
            }
		
            parameters = "location=" + settings.location + ",menubar=" + settings.menubar + ",height=" + settings.height + ",width=" + settings.width + ",toolbar=" + settings.toolbar + ",scrollbars=" + settings.scrollbars  + ",status=" + settings.status + ",resizable=" + settings.resizable + ",left=" + settings.left  + ",screenX=" + settings.left + ",top=" + settings.top  + ",screenY=" + settings.top;
		
            jQuery(this).bind("click", function(){
                var name = settings.createnew ? "PopUpWindow" + index : "PopUpWindow";
                winObj = window.open(this.href, name, parameters);
			
                if (settings.onUnload) {
                    // Incremental check for window status
                    // Attaching directly to window.onunlaod event causes invoke when document within window is reloaded
                    // (i.e. an inner refresh)
                    unloadInterval = setInterval(function() {
                        if (!winObj || winObj.closed) {
                            clearInterval(unloadInterval);	
                            settings.onUnload.call($(this));
                        }
                    },500);
                }
			
                winObj.focus();
			
                return false;
            });
        });

    };