public static void PreventDoubleClick(Page page, Button button, string message)
{
	StringBuilder sb = new StringBuilder();
	sb.Append("if (typeof(Page_ClientValidate) == 'function') { ");
	sb.Append("if (Page_ClientValidate() == false) { return false; }} ");
	sb.Append("this.value = '" + message + "';");
	sb.Append("this.disabled = true;");
	sb.Append(page.ClientScript.GetPostBackEventReference(button, String.Empty));
	sb.Append(";");
	button.Attributes.Add("onclick", sb.ToString());
}