website with functionality of zooming

hi
i am doing the website with functionality of zooming
<span> <a id="placeholder" runat="server" rel="zoom-width:600px; zoom-height:600px" class="MagicZoom">
<asp:Image ID="images" BorderWidth="1px" BorderColor="LightGray" runat="server" onerror="this.onerror=null;this.src='../Image/noimage2.png'" Width="250px" /></a>
</span>

on page loads
i am assigning the value like
this.images.ImageUrl = "../Image/temp/" + stylecode.Trim() + ".jpeg";
placeholder.HRef = "../Image/temp/" + style_code.Trim() +".jpeg";
on mouse over i am using the function like string mainimgurl = "../Image/temp/" + style_code.Trim() + hdncolorcode.Value.Trim() + ".jpeg"; lblcolorname.Attributes.Add ...