On SharePoint, Hide the “Sign – in As A Different User” option through JQuery Or Other Options

A simple script you can add to your master page or content editor etc. to hide the “Sign in As a Different User” option that is available in the Personal Actions Menu.

<script src="/jQuery/jquery-1.4.1.js" type="text/javascript"></script>

<script type="text/JavaScript">

jQuery(document).ready(function($) {

var objects = document.getElementsByTagName("ie:menuitem");

for (var i = 0; i < objects.length; i++) {

itm = objects[i];

if (('#' + itm.id).indexOf("LoginAsDifferentUser") != -1) {

$('#' + itm.id).remove();

}

}

})

</script>

********************************************

Go to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\CONTROLTEMPLATES\

You there have a file call welcome.ascx and have action to  "LoginAsDifferentUser"

<SharePoint:MenuItemTemplate runat="server" id="ID_LoginAsDifferentUser"

                Text="<%$Resources:wss,personalactions_loginasdifferentuser%>"

                Description="<%$Resources:wss,personalactions_loginasdifferentuserdescription%>"

                MenuGroupId="100"

                Sequence="100"

                UseShortId="true"/>