js控制淡入淡出示例代码_javascript技巧

}
/*控制div隐藏*/
function hid() {
setInterval(chang_display, 1);
}

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var j = 0;
function $(id) {return document.getElementById(id);}
function turn_display()
{ j++;
var div = $('div_test');
div.style.filter = "Alpha(Opacity="+j+")";
div.style.opacity = j / 100;
if ( j== "0")
{document.getElementById('div_test').style.display="none";//隐藏
exit
}
}
setInterval(turn_display, 1);