I am trying to call my function named isUrgencyTypeValid from my javascript code but it is not working. Please check what is the problem in my code.

My javascript function is not being called.

HTML Code

       <td colspan="2" align="center"><input id="btnSubmit" type="submit" value="submit" runat="server"/></td></tr>

jQuery Call function

        $("#btnSubmit").bind("click",function(){

        isUrgencyTypeValid();
        });

javascript implemented function

function isUrgencyTypeValid()
    {
        alert("asd");
        var i=0;
        for(i=0;i<$("radio[name='urgencyType']").length;i++)
            {
            if($("radio[name='urgencyType']")[i].checked)
                {
                alert($("radio[name='urgencyType']")[i].value);                 
                return true;
            }           
        return false;
    }   

More description about my form is here

<form runat="server" name="myPage">
    <table style="width: 100%;" cellpadding="5" cellspacing="5">
        <caption>
            Computer Support / Service Request
        </caption>
        <tr><td>First Name</td>
            <td><input id="txtFirstName" type="text" value="First Name" runat="server"/><span class="error"></span></td></tr>

        <tr>
            <td>Last Name</td>
            <td><input id="txtLastName" type="text" value="Last Name" runat="server"/><span class="error"></span></td></tr>

        <tr>
            <td>Email Address</td>
            <td><input id="txtEmailAddress" type="text" value="Email Address" runat="server"/><span class="error"></span></td></tr>    

        <tr>
            <td>Phone No</td>
            <td><input id="txtPhoneNo" type="text" value="Phone No" runat="server" /><span class="error"></span></td></tr>

        <tr>
            <td>Do you have text messaging</td>
            <td>
                <span>Yes</span><input id="rdoYes" value="Yes" type="radio" runat="server"/>
                <span>No</span><input id="rdoNo" value="No" type="radio" runat="server"/><span class="error"></span>
            </td></tr>

        <tr>
            <td>Description of request*: </td>
            <td><textarea id="txtDescription" cols="50" rows="10" runat="server"></textarea><span class="error"></span><span id="lengthCount"></span></td></tr>

        <tr>
            <td>Urgency of this support request:</td>
            <td>
                <input id="rdoAnyTime" name="urgencyType" value="Anytime" type="radio" runat="server"/><span>Anytime</span><br />
                <input id="rdoCplDays" name="urgencyType" value="In the next couple of days" type="radio" runat="server"/><span>In the next couple of days</span><br />
                <input id="rdoToday" name="urgencyType" value="Today" type="radio" runat="server"/><span>Today</span><br />
                <input id="rdoUrgent" name="urgencyType" value="This is extremely urgent...I cannot wait!" type="radio" runat="server"/><span>This is extremely urgent...I cannot wait!</span><br />
                <input id="rdoTalkSometime" name="urgencyType" value="Please contact me and we'll talk about it" type="radio" runat="server"/><span>Please contact me and we'll talk about it</span><br /><span class="error"></span>
            </td></tr>

        <tr>
            <td colspan="2" align="center">Captcha To Be implemented.</td></tr>

        <tr>
            <td></td>
            <td><input id="chkRequestCopy" type="checkbox" runat="server"/>Please send me a copy of this service request</td></tr>

        <tr>
            <td colspan="2" align="center"><input id="btnSubmit" type="submit" value="submit" runat="server"/></td></tr>

    </table>    
</form>