JS offsetX 与 火狐兼容问题

JS offsetX 与 火狐 兼容问题

火狐 好像不支持 offsetX
下面这段代码中的 offsetX 该怎么改，在 火狐 下，才能好用呢？

function upNext(bigimg){
var lefturl = 'javascript:dPlayPre();';
var righturl = 'javascript:dPlayNext();';
var imgurl = righturl;
var width = bigimg.width;
var height = bigimg.height;
bigimg.onmousemove=function(evt){
evt = evt ? evt : (window.event ? window.event : null);
if(evt. offsetX <width/2){
bigimg.style.cursor = 'url(/images/arr_left.cur),auto';
imgurl = lefturl;
}
else{
bigimg.style.cursor = 'url(/images/arr_right.cur),auto';
imgurl = righturl;
}
}
bigimg.onmouseup=function(){
top.location=imgurl;
}
}

昵称: xldgo  时间: 2010-08-27 14:26:15

JScript code

   
     

    
      function


    
       upNext(bigimg){
 


    
      var


    
       lefturl 


    
      =


    
       


    
      '


    
      javascript:dPlayPre();


    
      '


    
      ;
 


    
      var


    
       righturl 


    
      =


    
       


    
      '


    
      javascript:dPlayNext();


    
      '


    
      ;
 


    
      var


    
       imgurl 


    
      =


    
       righturl;
 


    
      var


    
       width 


    
      =


    
       bigimg.width;
 


    
      var


    
       height 


    
      =


    
       bigimg.height;
 bigimg.onmousemove


    
      =


    
      function


    
      (evt){
 evt 


    
      =


    
       evt 


    
      ?


    
       evt : (window.event 


    
      ?


    
       window.event : 


    
      null


    
      );
 


    
      var


    
       fx 


    
      =


    
       evt.offsetX 


    
      ||


    
       evt.layerX;
 


    
      if


    
      (fx


    
      <


    
      width


    
      /


    
      2){


    
      
 


    
      bigimg.style.cursor 


    
      =


    
       


    
      '


    
      url(/images/arr_left.cur),auto


    
      '


    
      ;
 imgurl 


    
      =


    
       lefturl;
 }
 


    
      else


    
      {
 bigimg.style.cursor 


    
      =


    
       


    
      '


    
      url(/images/arr_right.cur),auto


    
      '


    
      ;
 imgurl 


    
      =


    
       righturl;
 }
 }
 bigimg.onmouseup


    
      =


    
      function


    
      (){
 top.location


    
      =


    
      imgurl;
 }
 }
 参考：http:


    
      //


    
      blog.csdn.net/IBM_hoojo/archive/2010/07/02/5708440.aspx