En Js:
Código:
<script language="JavaScript1.2">
function high(which2){
theobject=which2
highlighting=setInterval("highlightit(theobject)",50)
}
function low(which2){
clearInterval(highlighting)
if (which2.style.MozOpacity)
which2.style.MozOpacity=0.3
else if (which2.filters)
which2.filters.alpha.opacity=30
}
function highlightit(cur2){
if (cur2.style.MozOpacity<1)
cur2.style.MozOpacity=parseFloat(cur2.style.MozOpacity)+0.1
else if (cur2.filters&&cur2.filters.alpha.opacity<100)
cur2.filters.alpha.opacity+=10
else if (window.highlighting)
clearInterval(highlighting)
}
</script>
Y en la imagen:
Código:
<img src="imagen.png" border="0" onMouseover="high(this)" onMouseout="low(this)">
Le cambias la transparencia en el 1er codigo y listo.