var checkTextLength = function(obj,length)
{
    var talkCount = $("TalkCount");
    if(obj==null)
    {
        window.alert("脚本错误，参数不正确");
    }
    else
    {
        var value = obj.value;
        var count = 0;
        if(length-value.len()>0){count = length-value.len()};
        if(value.len() > length)
        {
            obj.value = value.sub(length);
        }
        talkCount.innerHTML = value.len()+"";
    }
}
var ctlent = function(e, id){
    if(event.ctrlKey && window.event.keyCode==13){
        $(id).click();
    }
}