js显示进度条

  protected void AddProgressBar()
    {

        try
        {
            string s = ((LiteralControl)Controls[0]).Text;
        }
        catch
        {
            return;
        }

        // 修改记录1
        // 是否显示进度条
        if (ShowProgressBar == true)
        {
            //this.RegisterOnSubmitStatement("Submit","ToSubmit();");
            string script = @"<!-- 
                                    var ie5 = (document.all&&document.getElementsByTagName); 
 
                                    function setProgress(v, el) 
                                    { 
                                        if (ie5 || document.readyState == ""complete"") 
                                        { 
                                            filterEl = el.children[0]; 
                                            valueEl = el.children[1]; 

                                            if (filterEl.style.pixelWidth > 0) 
                                            { 
                                                var filterBackup = filterEl.style.filter; 
                                                filterEl.style.filter = """"; 
                                                filterEl.style.filter = filterBackup; 
                                            } 

                                            filterEl.style.width = v + ""%"";  
                                            valueEl.innerText=v+ ""%"";                                
                                        } 
                                    }   
                                    
                                    var step=1;
                                    var ProgressStart=false;
                                    var ProgressNum=0;
                                    var WaitTime=10;
                                    var OnSubmit = false;
                                    
                                    function fakeProgress(el) 
                                    {
                                        if (ProgressNum >= 99) 
                                        {
                                            setProgress(99, el); 
                                        }
                                        else 
                                        { 
                                            if(step>=100) 
                                            {
                                                return;
                                            }
                                            
                                            setProgress(ProgressNum, el); 
                                            ProgressNum++;
                                            
                                            if(ProgressNum>60)
                                            {
                                                WaitTime=WaitTime+10;
                                            } 
                                            else if(ProgressNum>85)
                                            {
                                                WaitTime=WaitTime+100;
                                            }    
                                            else if(ProgressNum>90)
                                            {
                                                WaitTime=WaitTime+ProgressNum;
                                            }
                                            else if(ProgressNum>95)
                                            {
                                                WaitTime=WaitTime+ProgressNum;
                                            }
                                            
                                            window.setTimeout(""fakeProgress(document.all[\'"" + el.id + ""\'])"", WaitTime); 
                                        } 
                                    }        
                                                 
                                    function showProgress()
                                    {
                                        try{Form1.style.display='none';}catch(ex){}
                                        if(ProgressStart==true){WaitTime=50;ProgressNum=0;return;}
                                        window.document.all.ProgressPanle.style.display="""";
                                        ProgressStart=true;
                                        fakeProgress(window.document.all.Progress);
                                    } 
                                    window.onbeforeunload=showProgress;
                                    function overProgress(){
                                        step=100;setProgress(100, window.document.all.Progress);
                                        window.setTimeout(""setProgress(100, window.document.all.Progress)"", 0); 
                                    }
                                   // window.onunload=overProgress;
                        //--> ";
            string JavaScriptStr = @"<SCRIPT type=""text/javascript""> ";
            JavaScriptStr += script + @"</SCRIPT>";
            string HideFormTable = @"<div id=""ProgressPanle"" style=""LEFT: 35%;TOP: 45%;DISPLAY: none; POSITION: absolute;WIDTH: 30%; "" border=0>                                                                                 
                                            <font style=""FONT-SIZE: 9pt;   COLOR: black;   HEIGHT: 10px"">正在处理中...</font>
                                            <div id=""Progress"" style=""BORDER: darkgray 1px solid; BACKGROUND: white; WIDTH: 100%;HEIGHT: 16px; TEXT-ALIGN: left"">
                                                <div id=""sbChild1"" style=""FILTER: Alpha(Opacity=0, FinishOpacity=100, Style=1, StartX=0, StartY=0, FinishX=100, FinishY=0); WIDTH: 0%; POSITION: absolute; HEIGHT: 14px"">
                                                    <div style=""FONT-SIZE: 1px; BACKGROUND: highlight; WIDTH: 100%; HEIGHT: 100%;""></div>
                                                </div>
                                                <div style=""FONT-SIZE: 12px; WIDTH: 100%; COLOR: silver; FONT-FAMILY: arial; POSITION: absolute; TEXT-ALIGN: center"">0%</div>                                                
                                            </div> </div>";

            ((LiteralControl)Controls[0]).Text += HideFormTable;



            ((LiteralControl)Controls[Controls.Count - 1]).Text += JavaScriptStr;


        }
    }