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          JS進度條四

          Posted on 2007-10-23 09:50 草 鞋 閱讀(321) 評論(0)  編輯  收藏 所屬分類: JavaScript
          <style type="text/css">
          #divLoadCont{position:absolute; z-index:500; left:0; top:0; width:100%; height:98%; clip:rect(0,100%,100%,0); background-color:transparent; layer-background-color:white; }
          #divLoad1{position:absolute; layer-background-color:silver; background-color:silver}
          #divLoad2{position:absolute; left:0; top:0; layer-background-color:navy; background-color:navy}
          #divLoadText{position:absolute; background-color:transparent; font-family:arial,helvetica; color:Navy; font-size:14px; }
          </style>
          <script language="JavaScript" type="text/javascript">
          function lib_bwcheck(){ //Browsercheck (needed)
           this.ver=navigator.appVersion
           this.agent=navigator.userAgent
           this.dom=document.getElementById?1:0
           this.opera5=this.agent.indexOf("Opera 5")>-1
           this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
           this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
           this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
           this.ie=this.ie4||this.ie5||this.ie6
           this.mac=this.agent.indexOf("Mac")>-1
           this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
           this.ns4=(document.layers && !this.dom)?1:0;
           this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
           return this
          }
          var bw=new lib_bwcheck()
          numImages=20 //速度
          loaderWidth=300 //進度條長度
          currentImg=0
          function lib_doc_size(){
            this.x=0;this.x2=bw.ie && document.body.offsetWidth-20||innerWidth||0;
            this.y=0;this.y2=bw.ie && document.body.offsetHeight-5||innerHeight||0;
            if(!this.x2||!this.y2) return message('Document has no width or height')
            this.x50=this.x2/2;this.y50=this.y2/2;
            return this;
          }
          function lib_obj(obj,nest){
            nest=(!nest) ? "":'document.'+nest+'.'
            this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0;
            this.css=bw.dom||bw.ie4?this.evnt.style:this.evnt;
            this.ref=this.css
            this.w=this.evnt.offsetWidth||this.css.clip.width||
              this.ref.width||this.css.pixelWidth||0;
            return this
          }
          lib_obj.prototype.moveIt = function(x,y){
            this.x=x;this.y=y; this.css.left=x;this.css.top=y
          }
          lib_obj.prototype.clipTo = function(t,r,b,l,setwidth){
            this.ct=t; this.cr=r; this.cb=b; this.cl=l
            if(bw.ns4){
              this.css.clip.top=t;this.css.clip.right=r
              this.css.clip.bottom=b;this.css.clip.left=l
            }else{
              if(t<0)t=0;if(r<0)r=0;if(b<0)b=0;if(b<0)b=0
              this.css.clip="rect("+t+","+r+","+b+","+l+")";
              if(setwidth){this.css.pixelWidth=this.css.width=r;
              this.css.pixelHeight=this.css.height=b}
            }
          }
          var oLoad2
          function startLoading(){
            page=new lib_doc_size()
            oLoadCont=new lib_obj('divLoadCont')
            oLoad=new lib_obj('divLoad1','divLoadCont')
            oLoad2=new lib_obj('divLoad2','divLoadCont.document.divLoad1')
            oLoadText=new lib_obj('divLoadText','divLoadCont.document.divLoad1')
            oLoad.moveIt(page.x50-loaderWidth/2,page.y50-20)
            oLoadText.moveIt(loaderWidth/2 - oLoadText.w/2,10)
            oLoad.clipTo(0,loaderWidth,40,0,1)
            oLoad2.per = loaderWidth/numImages
          }
          function loadIt(ok){
            currentImg++
            if(oLoad2) oLoad2.clipTo(0,oLoad2.per*currentImg,40,0,1)
            if(!ok){
              oLoadCont.css.visibility='hidden'
              oLoadCont=null; oLoad1=null; oLoad2=null;
            }
          }
          function loadIt_display(ok){
            currentImg++
            if(oLoad2) oLoad2.clipTo(0,oLoad2.per*currentImg,40,0,1)
            if(currentImg<=numImages) setTimeout("loadIt_display(1)",200)
            else{
              oLoadCont.css.visibility='hidden'
              window.location="file:///c|/"
            }
          }
          </script>
          <div id="divLoadCont">
            <div id="divLoad1">
              <div id="divLoad2"></div><br>
              <div id="divLoadText">Loading...</div>
            </div>
          </div>
          <script>
          startLoading()
          //onload=loadIt; //- LEAVE THIS LINE WHILE TESTING. UNCOMMENT WHEN READY
          loadIt_display(1) //LEAVE THIS LINE WHILE TESTING. DELETE WHEN READY
          </script>
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