怎么在客户端清除 服务器端 textbox 里的内容，避免页面刷新

如何在客户端清除 服务器端 textbox 里的内容，避免页面刷新
rt
谢谢

------解决方案--------------------------------------------------------
function ClearIt()
{
document.getElementById( "TextBox1 ").value= " ";
}
<input id= "btn " type = "button " onclick= "ClearIt() ">

------解决方案--------------------------------------------------------
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox>

<a href=# onclick= "dd() "> asdfasdfasfd </a>
<script type= "text/javascript ">
function dd()
{
document.getElementById( " <%= this.TextBox1.ClientID%> ").value= " ";
}
</script>