watermark textbox problem

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hi all

i am working on watermark text boxes
i am using javascript to do that

here below is the complete code

XML

<script language="javascript" type="text/javascript">
         function Focus(objname, waterMarkText) {
             obj = document.getElementById(objname);
             if (obj.value == waterMarkText) {
                 obj.value = "";
                 obj.className = "NormalTextBox";
                 if (obj.value == "User ID" || obj.value == "" || obj.value == null) {
                     obj.style.color = "black";
                 }
             }
         }
         function Blur(objname, waterMarkText) {
             obj = document.getElementById(objname);
             if (obj.value == "") {
                 obj.value = waterMarkText;
                 if (objname != "txtPwd") {
                     obj.className = "WaterMarkedTextBox";
                 }
                 else {
                     obj.className = "WaterMarkedTextBoxPSW";
                 }
             }
             else {
                 obj.className = "NormalTextBox";
             }

             if (obj.value == "User ID" || obj.value == "" || obj.value == null) {
                 obj.style.color = "gray";
             }
         }
    </script>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">

  <table>
        <tr>
            <td>
                User Id
            </td>
            <td>
                <asp:TextBox ID="txtUserId" runat="server"
        onfocus="Focus(this.id,'User ID')"
                    onblur="Blur(this.id,'User ID')"
            Width="126px" CssClass="WaterMarkedTextBox">User ID</asp:TextBox>
            </td>
        </tr>
        <tr>
            <td>
                Password
            </td>
            <td>
                <asp:TextBox ID="txtPwd" TextMode="Password"
        runat="server" onfocus="Focus(this.id,'')"
                    onblur="Blur(this.id,'')" Width="126px"
            CssClass="WaterMarkedTextBoxPSW" />
            </td>
        </tr>
        <tr>
            <td>
            </td>
            <td>
                <asp:Button ID="Button1" runat="server" Text="Submit" onclick="Focus(this.id,'User ID')" />
            </td>
        </tr>
    </table>

now problem is that suppose i am not entering username
so on submit click txtuserid goes empty at server side

but it contain value that assigned in weatermark
i hav to clear that value

plz suggest sumthing

Posted 21-Sep-11 23:34pm

sharmarun

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2 solutions

Solution 1

Use Ajax control.Inbuilt control is there for watermark text

Posted 22-Sep-11 0:29am

harry.devu87

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sharmarun 22-Sep-11 6:41am

i dont want to use ajax
its project requirement
plz suggest another option

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sharmarun · Accepted Answer · 2011-09-22T02:36:00

here below is the solution

C#

function ControlTypes() {
               for (i = 0; i < document.forms[0].length; i++) {
                   doc = document.forms[0].elements[i];
                   var type = doc.type;

                   if (type == "text") {
                       if (doc.style.color == "Aqua") {
                           var asa = doc.value;
                           doc.value = '';
                       }
                       else
                       { }

                   }
               }
           }

jsut clear the textboxes on click if there color is same(define in css)