鼠标滚轮改变图片大小的示例代码_javascript技巧

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鼠标滚轮改变图片大小的示例代码

function onWheelZoom(obj){
zoom = parseFloat(obj.style.zoom);
tZoom = zoom + (event.wheelDelta>0 ? 0.05 : -0.05);
if( tZoom > 1 || tZoom<0.1 ) return true;
obj.style.zoom=tZoom;
return false;
}

src="http://files.jb51.net/file_images/article/201311/20131120101711.png" style="zoom:1;"

onmousewheel='return onWheelZoom(this)'>

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