failed to get .ascx server control id

Question

below is some sample code from my .ascx pages,i am trying to use jquery to perform someaction, $("input") served me well but $("asp:Label") is not working. what should I include inorder to make $("asp:Label") work

<asp:Label ID="lblInvolvedMembers" runat="server"></asp:Label>
<asp:Label ID="lblAcceptedBy" runat="server">    </asp:Label>
<input type="text" id="family" value="family " />
<input type="button" id="family1" value="button" />

//here i am trying to get server control to perform some action,   $("input") served me well but  $("asp:Label") is not working. what should i include inorder to make  $("asp:Label") work

$("asp:Label").hover(function() {
        Tip.text('');
        var ToolTipID = $(this).attr('id');
        var height = $(this).height() + 10;
        var offset = $(this).offset();
        if (data[ToolTipID].split('<br\>').length - 1) {
            var temp = data[ToolTipID].split('<br\>').length - 1;
            height = temp * 10;
        } else {
            height = 10;
        }

  $("input").hover(function() {
        Tip.text('');
        var ToolTipID = $(this).attr('id');
        var height = $(this).height() + 10;
        var offset = $(this).offset();
        if (data[ToolTipID].split('<br\>').length - 1) {
            var temp = data[ToolTipID].split('<br\>').length - 1;
            height = temp * 10;
        } else {
            height = 10;
        }

Answer 1

you'll want to change

<asp:Label ID="lblInvolvedMembers" runat="server"></asp:Label>

to something like

<asp:Label ID="lblInvolvedMembers" runat="server" CssClass="label"></asp:Label>

then you can use the jQuery selector here

$('.label').hover(function() {

instead of

$("asp:Label").hover(function() {

that way, all the labels will have the jQuery hover function.

if you wanted a specific label to be hovered, you'd have to use

$('#<%= lblInvolvedMembers.ClientID %>').hover(function() {

ASP tags are processed before being passed to the client browser where javascript can act on them, hence

lblInvolvedMembers would become something like ctl0_label_lblInvolvedMembers or something.

UPDATE

it also looks like you haven't closed your jQuery functions

$('.label').hover(function() {
        Tip.text('');
        var ToolTipID = $(this).attr('id');
        var height = $(this).height() + 10;
        var offset = $(this).offset();
        if (data[ToolTipID].split('<br\>').length - 1) {
            var temp = data[ToolTipID].split('<br\>').length - 1;
            height = temp * 10;
        } else {
            height = 10;
        }
});

$("input").hover(function() {
    Tip.text('');
    var ToolTipID = $(this).attr('id');
    var height = $(this).height() + 10;
    var offset = $(this).offset();
    if (data[ToolTipID].split('<br\>').length - 1) {
        var temp = data[ToolTipID].split('<br\>').length - 1;
        height = temp * 10;
    } else {
        height = 10;
    }
});

I am not sure what Tip and data are, but you can see a working .hover() function on this jsFiddle -> http://jsfiddle.net/XF4Zk/ the IDs of the labels here represent a clientside id of the control created by ASP.NET, which is why you would use lblInvolvedMembers.ClientID to get the value of the control for Javascript