in html
<div id="dvEmpName" class="w200s">
<a href="#" id="basic" runat="server"><%# Eval("suppname")%></a></div>
here href id is basic which is used for the java script function
so in code add repeater itemdatabound event
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
RepeaterItem rowItem = e.Item;
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
HtmlControl btn = e.Item.FindControl("basic") as HtmlControl;
HtmlControl rowContainer = e.Item.FindControl("dvRowData") as HtmlControl;
if (btn != null)
{
btn.Attributes.Add("onClick", string.Format("showDataRow('{0}');", rowContainer.ClientID));
}
}
}