复制代码 代码如下:
/*
 *yyj.js 主要提供后台应用方法
 *目前有ajax、addloadevent、deleteall、getbyclass、$c(=getbyclass)、$、yyjtable、setcss、getcss、iaarray等方法。最后面还提供了一个
 *可实例化的方法yyj.tick用来计算脚本运行时间
 *版本0.1    --tianyi    yyj
 */
 var yyj=function(){
     var uniqueinstance;
     function constrotor(){
         return {
             //ajax方法
             ajax:function(method,url,data,success,fail){
                 var isget=method.tolowercase()==get;
                 var xmlhttp=window.xmlhttprequest?new xmlhttprequest():new activexobject(microsoft.xmlhttp);
                 xmlhttp.open(method,url,true);
                 if(!isget)xmlhttp.setrequestheader(content-type,application/x-www-form-urlencoded);
                 xmlhttp.onreadystatechange=function(){
                         if(xmlhttp.readystate==4){
                             if(xmlhttp.status==200){
                                 if(success)success(xmlhttp);
                             }else{
                                 if(fail)fail(xmlhttp);
                             }
                         }
                 };
                 xmlhttp.send(isget?null:data);
             },//ajax
             addloadevent:function(func) {
                 var oldonload = window.onload;
                 if (typeof window.onload != 'function') {
                     window.onload = func;
                 } else {
                     window.onload = function() {
                       if (oldonload) {
                         oldonload();
                       }
                       func();
                     }
                 }
             },//addloadevent
             deleteall:function(checkallbtn,checksomebtn,submitbtn){
                 var checkall=yyj.$(checkallbtn);
                 var checksome=yyj.$(checksomebtn);
                 var submit1=yyj.$(submitbtn);
                 var checkboxs=(function(){
                     var arr=[];
                     var check=document.getelementsbytagname(input);
                     for(i=0;i                         if(check[i].getattribute(type)!=checkbox)
                             continue;
                         arr.push(check[i]);
                     }
                     return arr;
                 })();
                 checkall.onclick=function(){
                     checkall.clicked=true;
                     for(var i=0;i                         if(!checkboxs[i].checked){
                             checkall.clicked=false;
                             break;
                         }
                     }
                     if(!checkall.clicked){
                         for(var i=0;i                             checkboxs[i].checked=true;
                         }
                     }else{
                         for(var i=0;i                             checkboxs[i].checked=false;
                         }
                     }
                 }
                 checksome.onclick=function(){
                     for(var x in checkboxs){
                         checkboxs[x].checked=!checkboxs[x].checked;
                     }
                 }
                 submit1.onclick=function(){
                     var haschecked=false;
                     var besuredel=false;
                     for(var i=0;i                         if(checkboxs[i].checked){
                             haschecked=true;
                             break;
                         }
                     }
                     haschecked?function(){
                         besuredel=confirm(确定要删除选中项吗？);
                     }():function(){
                         alert(没有选中项！);
                         besuredel=false;
                     }();
                     return besuredel;
                 }
             },//deleteall
             getbyclass:function(classname,parent,nodename){
                 var s=(parent||document).getelementsbytagname(nodename||*);
                 return function(){
                     var a=[];
                     for(var i=0,j=s.length;i                         if(!s[i].classname) continue;
                         var name= +s[i].classname+ ;
                         if(name.indexof( +classname+ )!=-1){
                             a.push(s[i]);
                         }
                     }
                     return a;
                 }();
             },
             $c:function(classname,parent,nodename){
                 return yyj.getbyclass(classname,parent,nodename);
             },//getbyclass
             $:function(str){
                 return document.getelementbyid(str);
             },//getbyid
             yyjtable:function(tableid){
                 var tbl=yyj.$(tableid);
                 var trs=tbl.getelementsbytagname(tr);
                 for(var i=1;i                     if(i%2!=0){
                         trs[i].style.backgroundcolor=#fffff0;
                     }else{
                         trs[i].style.backgroundcolor=white;
                     }
                     trs[i].onmouseover=function(){
                         this.col1=this.style.backgroundcolor;
                         this.style.backgroundcolor=#fffacd;
                     }
                     trs[i].onmouseout=function(){
                         this.style.backgroundcolor=this.col1;
                     }
                 }
             },//yyjtable
             /*使用方法
             yyj.setcss([yyj.$(table1)],{
                 color:red,
                 backgroundcolor:silver
             });*/
             setcss:function(eles,opt){
                 if(!eles||!opt)return;
                 if(!eles.length){
                     throw new error(setcss的第一个参数要求为数组！);
                 }
                 for(var i=0;j=eles[i];i++){
                     try{
                         for(var x in opt){
                             j.style[x]=opt[x];
                         }
                     }catch(ex){}
                 }
             },//setcss
             /*使用方法
             var css=yyj.getcss(yyj.$(table1),[backgroundcolor]);
             alert(css[backgroundcolor]);*/
             getcss:function(ele,opt){
                 if(!this.isarray(opt)){
                     throw new error(getcss的第二个参数要求为string数组！);
                 }
                 var css={};
                 for(var i=0,j=opt.length;i                     try{
                         css[opt[i]]=ele.style[opt[i]];
                     }catch(ex){}
                 }
                 return css;
},//getcss
             isarray:function(opt){
                 return object.prototype.tostring.call(opt)==[object array]
             }
};
     }
     function getuniqueinstance(){
         if(uniqueinstance){
             return uniqueinstance;
         }
         uniqueinstance=constrotor();
         return uniqueinstance;
     }
     return getuniqueinstance();
 }();
 //脚本执行时间
 /*使用方法
 var ti=new yyj.ticks();
 ti.begin();
 代码段
 ti.end();
 alert(ti.tick);*/
 yyj.ticks=function(){
     var starttick,stoptick;
     return function(){
         this.begin=function(){
             starttick=new date();
         }
         this.end=function(){
             stoptick=new date();
             this.tick=stoptick-starttick;
         }
     }
 }();