jquery的键盘事件修改代码

复制代码代码如下:
（function（$）{
var no_ie_pr=function（e）{
var _this=e;
var tabpr=function（e）{
_this.attr（"tabIndex", 1）.click（function（）{
_this.focus（）;
}）;
if（！$.browser.msie）{
_this.css（"outline-style", "none"）;
}
}
var gettag=_this[0].tagName.toLowerCase（）;
var oe=["abbr","acronym","address","b","bdo","big","blockquote","center","cite","dd","del","dir","dfn","dl","dt","em","font","form","h1","h2","h3","h4","h5","h6","i","ins","img","ins","kbd","li","menu","ol","p","pre","q","s","samp","small","strike","strong","sub","sup","th","tr","tt","u","ul","var"];
if（$.inArray（gettag,oe）！=-1）{
tabpr（）;
}else{
if （$.browser.msie） {
var ce=["span","div"];
if（$.inArray（gettag,ce）！=-1）{
//IE只对绝对定位元素和固定定位元素有效,加tabIndex无法消除虚线
}else{
var ce=["label","legend","tbody","tfoot","thead"];
if（$.inArray（gettag,ce）！=-1）{
tabpr（）;
}
}
}else{
var ce=["caption","fieldset","table","td","code","div","span","label","legend","tbody","tfoot","thead"];
if（$.inArray（gettag,ce）！=-1）{
tabpr（）;
}
}
}
}

$.fn.oldKeyup=$.fn.keyup;
$.fn.keyup=function（fn）{
no_ie_pr（this）;
$（this）.oldKeyup（fn）;
}

$.fn.oldKeypress=$.fn.keypress;
$.fn.keypress=function（fn）{
no_ie_pr（this）;
$（this）.oldKeypress（fn）;
}

$.fn.oldKeydown=$.fn.keydown;
$.fn.keydown=function（fn）{
no_ie_pr（this）;
$（this）.oldKeydown（fn）;
}

}）（jQuery）