var AjaxForm = {
    
    currentId : 0,

    ShowWindow: function(e, url, width, height, title, modal, openCallback, closeCallback) {
    
        if (e != undefined && e != null) {
            // event bubbling
            if (!e) var e = window.event;
	        e.cancelBubble = true;
	        if (e.stopPropagation) e.stopPropagation();
        }
	    
        // Creates window
        AjaxForm.currentId++;
        var windowName = "window_" + AjaxForm.currentId;
        var windowUrl = url;
        win = new Window(windowName,
            {
             url: windowUrl,
             title: title,
             width: width,
             height: height,
             closeCallback: closeCallback,
             destroyOnClose: true,
             recenterAuto: true,
             minimizable: false,
             maximizable: false,
             resizable: true,
             showEffect: Element.show,
             hideEffect: Element.hide
            }
        );
        
        win.setZIndex(1000000+AjaxForm.currentId);
        
        // Shows window
        win.showCenter(modal);
        
        // Calls open callback
        //if (openCallback != null)
        //    openCallback();
    },
    
    CloseWindows: function() {
        Windows.closeAll();
    },
    
    CloseCurrentWindow: function() {
        var win = Windows.getFocusedWindow();
        Windows.close(win.getId());
    },
    
    SetWindowSize : function(width, height) {
        //alert("Width: "+width+" Height:"+height);
        var win = Windows.getFocusedWindow();
        win.setSize(width, height);
        win._center(win.centerTop, win.centerLeft);
    },
    
    UpdateHeight : function() {
        var win = Windows.getFocusedWindow();
        var newHeight = AjaxForm._getContentHeight(win);
        if (newHeight != 0)
            AjaxForm.SetWindowSize(win.width, newHeight+5);
    },
    
    _getContentHeight:function(win) {
	    var iframe = frames[(win.getId() + "_content")];
	    if (iframe != null) {
	        var contents = iframe.$$('div.nhsContent');
	        if (contents.length > 0)
	          return contents[0].getHeight();
		}
	    return 0;
    }
}