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js页面加载进度条

2011-12-07 13:51 197 查看
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=9" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>页面加载进度条</title>
<script src="js/jquery-1.4.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
var etControl = {};
etControl.process = function (config) {
/*需要放在html中的body标签后面使用本控件*/

var count = 0;
var id = "loading";
var el = "#" + id;

$("body").append('<div id="' + id + '"></div>');

var divTxt = "#" + id + " div";
$(el).html("<div></div>");
$(el).attr("style", "width: 100px;height: 12px;background: #A0DB0E;padding: 5px;position: fixed;left: 0;top: 0;font-size:12px;");
$(divTxt).attr("style", "width: 1px;height: 12px;background: #F1FF4D;");

/*更新进度条*/
this.updateProcess = function (percent) {
setTimeout(function () { $(divTxt).animate({ width: percent + "px" }).text(percent + "%") }, ++count * 500);
if (percent == 100) { /*100%就从页面移除loading标签*/
setTimeout(function () {
$(el).hide(500);
setTimeout(function () { $(el).remove() }, 500);
}, count * 500 + 800);
}
};
}

</script>
</head>
<body>

</body>

<script type="text/javascript">
/*需要放在body标签后面,然后在适当的位置调用updateProcess方法*/
var p = new etControl.process();
p.updateProcess(34);
p.updateProcess(57);
p.updateProcess(62);
p.updateProcess(90);
p.updateProcess(100);
</script>

</html>
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