Ui action to open the Kb artical

[SidharthReddy]

Hi All,

 I am creating one Ui Action . When the user click on the  button it should redirect to the  some Kb article and i am fetching the KB  latest published  kb article but when i clicked on the button its not working .Please find the script below and let me know if any changes has to be done. I have checked the client check box as well and on click also i have mentioned

Script : 

function OnClick() {

    var attchement = "number=KB0056358^kb_knowledge_base=6ad1badfdbe80054b19fe32748961958^kb_category=381d7e91dbac0054b19fe3474896199e^workflow_state=published";

    var grKbN = new GlideRecord("kb_knowledge");

    grKbN .addEncodedQuery(attchement ); // Corrected method to add query

    grKbN .query();

    while (grKbN .next()) {

        var sysID = grKbN.sys_id;

    }

    var url = "/now/nav/ui/classic/params/target/kb_knowledge.do%3Fsys_id%3Dc4d99c928726ca9407f1cae50cbb35d5";

    window.open(url, '_blank');

}