function doubleCheck(){
if (window.document.readyState != null &&
window.document.readyState != 'complete')
{
alert("正在处理，请等待！")
return false
}
else
{
MessageClear()
return true
}
}
在C#代码中：
this.backButton.Attributes["onClick"] = "return doubleCheck()"
不用js在head里加上<meta name="viewport" content="target-densitydpi=device-dpi, width=device-width, initial-scale=1, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">就行
