动态改变照片的透明度
<img id="imgInfo" src="Images/Train.jpg"
style="filter: alpha(opacity=50)"/>
<input id="Button1" type="button" value="透明度+"
onclick="rdl_change(1)" />
<input id="Button2" type="button" value="透明度-"
onclick="rdl_change(0)"/>
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<script>
function rdl_change(m)
{
var oDiv=document.getElementById("imgInfo");
switch(m)
{
case 0 :
//照片变透明
oDiv.filters.alpha.opacity=oDiv.filters.alpha.opacity-10;
break;
case 1 :
//照片变亮
oDiv.filters.alpha.opacity=oDiv.filters.alpha.opacity+10;
break;
default: break;
}
}
</script>
放上鼠标显示原照片 移开鼠标让照片半透明
<img src="Images/aaa.jpg" id="content"
onMouseOver="runtimeStyle.filter='alpha
(opacity=100)'"
onMouseOut="runtimeStyle.filter='alpha
(opacity=40)'">