<asp:Content ID="Content2" ContentPlaceHolderID="head" runat="server">
     <script type="text/javascript">
         function validationCheck() {
             var summary = "";
             summary += isvalidName();
             summary += isvalidEmail();
             summary += isvalidSubject();
             summary += isvalidMessage();
             if (summary != "") {
                 alert(summary);
                 return false;
             }
             else {
                 return true;
             }
         }
         function isvalidName() {
             var id;
             var temp = document.getElementById("<%=txtName.ClientID %>");
            id = temp.value;
            if (id == "") {
                return ("Please enter Name" + "\n");
            }
            else {
                return "";
            }
        }
        function isvalidEmail() {
            var id;
            var temp = document.getElementById("<%=txtEmail.ClientID %>");
            id = temp.value;
            var re = /\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;
            if (id == "") {
                return ("Please Enter Email" + "\n");
            }
            else if (re.test(id)) {
                return "";
            }

            else {
                return ("Email should be in the form [email protected]" + "\n");
            }
        }
        function isvalidSubject() {
            var id;
            var temp = document.getElementById("<%=txtSubject.ClientID %>");
             id = temp.value;
             if (id == "") {
                 return ("Please enter Subject" + "\n");
             }
             else {
                 return "";
             }
         }
         function isvalidMessage() {
             var id;
             var temp = document.getElementById("<%=txtMessage.ClientID %>");
            id = temp.value;
            if (id == "") {
                return ("Please enter Message" + "\n");
            }
            else {
                return "";
            }
        }

    </script>

</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server">
     <table style="width: 100%;">
        <tr>
            <td>Name:</td>
            <td>
                <asp:TextBox ID="txtName" runat="server" CssClass="txt"></asp:TextBox></td>
            <td> </td>
        </tr>
        <tr>
            <td>Email ID:</td>
            <td>
                <asp:TextBox ID="txtEmail" runat="server" CssClass="txt"></asp:TextBox></td>
            <td> </td>
        </tr>
        <tr>
            <td>Subject:</td>
            <td>
                <asp:TextBox ID="txtSubject" runat="server" CssClass="txt"></asp:TextBox></td>
            <td> </td>
        </tr>
         <tr>
             <td>Attach a file:</td>
             <td>
                 <asp:FileUpload ID="FileUpload1" runat="server" AllowMultiple="true" />
             </td>
             <td></td>
         </tr>
        <tr>
            <td>Message:</td>
            <td>
              
            </td>
            <td> </td>
        </tr>
        <tr>
            <td></td>          
        </tr>
    </table>
</asp:Content>
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