jquery输入框数字限制插件

(function($){
varkeyCode={
BACKSPACE:8,
CAPS_LOCK:20,
COMMA:188,
CONTROL:17,
DELETE:46,
DOWN:40,
END:35,
ENTER:13,
ESCAPE:27,
HOME:36,
INSERT:45,
LEFT:37,
//NUMPAD_ADD:107,
//NUMPAD_DECIMAL:110,
//NUMPAD_DIVIDE:111,
//NUMPAD_ENTER:108,
//NUMPAD_MULTIPLY:106,
//NUMPAD_SUBTRACT:109,
PAGE_DOWN:34,
PAGE_UP:33,
PERIOD:190,
RIGHT:39,
SHIFT:16,
SPACE:32,
TAB:9,
UP:38
}
varisControlCode=function(key){
for(nameinkeyCode){
if(keyCode[name]==key)
returntrue;
}
returnfalse;
}
varnumber=function(event){
vart=this;
if(event.shiftKey)
returnfalse;
varkey=event.keyCode;
if(isControlCode(key))
return;
if(key<48||key>105)
returnfalse;
if(key>57&&key<96)
returnfalse;
}
varControlList={};
varcontrol=Class.extend({
init:function(obj){
this.Event=[];
this.target=$(obj);
},
Add:function(settings){
vart=this;
t.Event.push(settings);
returnt;
},
Bind:function(){
vart=this;
if(!t.target){
return;
}
t.target.each(function(){
varb=$(this);
b.bind("keydown",t.event.bind(t)).bind("keyup",t.event.bind(t));
if(jQuery.browser.msie)
{
b.bind("paste",t.event.bind(t));
}
else{
b.bind("input",t.event.bind(t));
}
});
},
getmethods:function(type){
vart=this;
varlist=[];
$(t.Event).each(function(i,item){
if(!item.type||!item.method)
return;
if(item.type=="all"){
list.push(item.method);
}else
{
if(item.type==type){
list.push(item.method);
}
}
});
returnlist;
},
IsSuccess:function(list,event,obj){
varistrue=true;
for(vari=0;i<list.length;i++){
if(list[i].call(obj,event)===false)
{
istrue=false;
break;
}
}
returnistrue;
},
event:function(ev){
vart=this;
varevent=ev.originalEvent;
varobj=ev.target;
returnt.IsSuccess(t.getmethods(ev.type),event,obj);
}
});
control.Add=function(obj,settings){
varcon=ControlList[this.selector];
if(!con)
{
con=newcontrol(obj);
ControlList[this.selector]=con;
con.Bind();
}
con.Add(settings);
returncontrol;
}
$.fn.numberable=function(){
$(this).css("imeMode","disabled");
control.Add(this,{type:"keydown",method:number}).Add(this,{type:"keyup",method:number});
functionrepnumber(event){
varo=$(this);
if(o.val()){
o.val(o.val().replace(/[^\d]/g,""));
}
}
if(jQuery.browser.msie){
control.Add(this,{type:"paste",method:function(event){varo=this;
setTimeout(repnumber.bind(o,event),0);
}
});
}
else
{
control.Add(this,{type:"input",method:repnumber});
}
returnthis;
}
})(jQuery);