How to focus dojo slider to a particular value and then disabling dojo slider so that

JavaScript
1

How to focus dojo slider to a particular value (say 2.5 )on the slider and then disabling dojo slider so that value not changes on clicking on the dojo slider?ie i want to focus dojo slider to a particular value and then make it disable.


    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
    <html dir="ltr">
        
        <head>
            <style type="text/css">
                body, html { font-family:helvetica,arial,sans-serif; font-size:90%; }
            </style>
            <script src="../cmic/dojo/dojo/dojo.js"
            djConfig="parseOnLoad: true">
            </script>
            <script type="text/javascript">
                dojo.require("dijit.form.Slider");
                dojo.require("dijit.form.TextBox"); // this we only include to make the textinput look prettier
                dojo.addOnLoad(function() {
    
                    var slider = new dijit.form.HorizontalSlider({
                        name: "slider",
                        value: 0,
                        minimum: 0,
                        maximum: 10,
                        intermediateChanges: true,
                        style: "width:700px;",
                        onChange: function(value) {
                         dojo.byId("sliderValue").value = value;
                        }
                    },
                    "slider");
                });
            </script>
            <link rel="stylesheet" type="text/css" href="../cmic/dojo/dijit/themes/claro/claro.css"
            />
        </head>
        
        <body class=" claro ">
    
            <div id="slider"  intermediateChanges="true" showButtons="false" style="width:400px;color:#606060;">
            <ol dojoType="dijit.form.HorizontalRuleLabels" container="topDecoration"
                style="height:1.5em;color:#585858;font-size:75%;color:gray;">
            <li>0
                    </li>
                 <li>
                        2
                    </li>
                    <li>
                        4
                    </li>
                    <li>
                        6
                    </li>
                 <li>
                        8
                    </li>
                    <li>10
                    </li>
                </ol>
            
                
    
            <ol dojoType="dijit.form.HorizontalRuleLabels" container="topDecoration"
                style="height:1.5em;font-size:90%;color:#606060;margin:-1em 0px 0px 7.00em;">
    
                   <li>
                        Outstanding
                    </li>
                    <li>
                        Highly effective
                    </li>
                    <li>
                        &nbsp&nbspEffective
                    </li>
                    <li>
                           &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp &nbsp&nbsp&nbsp&nbsp &nbsp&nbsp&nbsp&nbspNeeds Improvement
                    </li>
                    <li>
                          &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp &nbsp&nbsp&nbsp&nbsp &nbsp&nbsp&nbsp&nbsp &nbsp&nbsp&nbsp&nbspNot Acceptable
                    </li>
                   <li>
                        
                    </li></ol>
    
    
        </div>
            <p>
                <input type="text" id="sliderValue" dojoType="dijit.form.TextBox" />
            </p>
            <script type="text/javascript">
                dojo.addOnLoad(function() {
                    if (document.pub) {
                        document.pub();
                    }
                });
            </script>
        </body>
    
    </html>