BootStrap初学者对弹出框和进度条的使用感觉

<div class="progress">
<div class="progress-bar" role="progressbar" aria-valuenow="60" 
aria-valuemin="0" aria-valuemax="100" style="width: 40%;">
<span class="sr-only">40% 完成</span>
</div>
</div>

<div class="modal fade" id="myModal1" tabindex="-1" role="dialog" 
aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="static" style="width:300px"> 
<div class="modal-dialog"> 
<div class="modal-content" > 
<span style="text-align:center;color:red">文件正在上传请勿刷新页面！</span><br /> 
<div class="progress progress-striped active"> 
<div class="bar"> 
</div> 
</div> 
</div> 
</div> 
</div> 

<scripts> 
var p = 101; 
var stop = 1; 
function run() { 
p += 4; 
$("div[class=bar]").css("width", p + "%"); 
var timer = setTimeout("run()", 500); 
if (p >100&&stop<1) { 
p = 0; 
} 
} 
$('#BtnSubmit').click(function () { 
$('#myModal1').modal('show'); 
p = 0; 
stop = 0; 
run(); 
$('#UpLoad').submit(); 
}); 
</scripts>