Calling a webscript in js client side

[sofia]

Hello,

I need to call the webscript with this url:  components/documentlibrary/sharedfiles-tree into a js client side file . I use a popup to display the webscript:

Alfresco.util.PopupManager.displayWebscript 
            ({
            title: "T",
            method: "GET",
            url: "components/documentlibrary/sharedfiles-tree",
                                properties:{}            
                }
            );
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When I apply reload my page, and my  action gets executed ,a popup  appears with a failure message : "Echec" in French .

What should I use a url ? I ve tried to use this : url:  Alfresco.constants.PROXY_URI + "components/documentlibrary/sharedfiles-tree", but I have the same problem ;

Help please
Thank u in advance.

[mitpatoliya]

Check this out.
http://blog.arvixe.com/webscript-call-in-client-side-javascript-of-alfresco/