在cs中直接呼叫javascript，不用在click事件

aspx
function Open()
{
var question="";
var question = confirm("Message?")
if (question)
{
window.open("http://","","width=600,height=400,toolbar=0,status=0,menubar=0,resize=0");
//開啟視窗
//window.open("http://");整個視窗
}
}

cs
string script = "< language="'javascript'">Open()< /script>";
ClientScript.RegisterStartupScript(this.GetType(), "n1", script);