function img_alpha(e,val) { e.filters.Alpha.Opacity = val; }

function onover()
{
    e =  event.srcElement;
	
	    for(i=100; i>60; i--)
		{
			img_alpha(e, i);
		}

}
function onout()
{
    e =  event.srcElement;
    img_alpha(e, 100);
}