鼠标滚轮事件

var scrollFunc=function(e){
var direct=0;
e=e || window.event;

var t1=document.getElementById("wheelDelta");
var t2=document.getElementById("detail");
if(e.wheelDelta){//IE/Opera/Chrome
t1.value=e.wheelDelta;
}else if(e.detail){//Firefox
t2.value=e.detail;
}
ScrollText(direct);
}
/*注册事件*/
if(document.addEventListener){
document.addEventListener('DOMMouseScroll',scrollFunc,false);
}//This situation only occurs in firefox

 

this situation occurs in ie , opera , safari , chrome
window.onmousewheel=document.onmousewheel=scrollFunc;

 

 

看这篇文章

 

http://adomas.org/javascript-mouse-wheel/

 

                        wheelDelta               detail

ie                      120(上) -120(下)      

firefox                                               -3(上)   3(下)

safari                120(上) -120(下)

opera                120(上) -120(下)       -3(上)   3(下)

chrome               120(上) -120(下)