Flash和WebBrowser的滚动条互斥

flash滚动条， 浏览器滚动条互斥处理

ExternalInterface.call("eval","var browserScrolling;
function allowBrowserScroll(value){browserScrolling=value;}
function handle(delta){if(!browserScrolling){return false;}return true;}
function wheel(event){var delta=0;if(!event){event=window.event;}
if(event.wheelDelta){delta=event.wheelDelta/120;
if(window.opera){delta=-delta;}}
else if(event.detail){delta=-event.detail/3;}
if(delta){handle(delta);}
if(!browserScrolling){
if(event.preventDefault){event.preventDefault();}
event.returnValue=false;}}
if(window.addEventListener){
window.addEventListener('DOMMouseScroll',wheel,false);}
window.onmousewheel=document.onmousewheel=wheel;
allowBrowserScroll(true);");
ExternalInterface.call("allowBrowserScroll",false);