非常好的图片滚动代码（多幅图片依次向上滚动, 每幅图都会有停留展示时间）

 四幅图片依次向上滚动, 每幅图都会有停留展示时间．

  < table width = " 100% "  border = " 0 "  cellpadding = " 0 "  cellspacing = " 0 " >
< tr >
< td >
< SCRIPT language = " JavaScript " >
       <!--
       var  scrla = 3
       var  scrlb = 1
       var  scrlc = 2
       var  scrld = 4
       var  scrlda = 'scrl_' + scrla;
       var  scrldb = 'scrl_' + scrlb;
       var  scrldc = 'scrl_' + scrlc;
       var  scrldd = 'scrl_' + scrld;
       var  timea = 100
       var  timeb = 300
       var  tt = 180 / timea  // 如果改了图片的高度,此处时间180也需相应改差值
       var  ttt = timea + timeb
       var  scrlnum = timea + 50
      
       function  scroll()  {
      
      if (scrlnum<=timea) {
      document.all[scrlda].style.top = 0-scrlnum*tt
      document.all[scrldb].style.top = 180-scrlnum*tt //如果改了图片的高度,此处180

也需相应改差值
      }
      
      if ((scrlnum>timea)&&(scrlnum<ttt)) {
      document.all[scrlda].style.top = -180 //如果改了图片的高度,此处180也需相应改

差值
      document.all[scrldb].style.top = 0
      }
      
      scrlnum=scrlnum+1
      
      if (scrlnum>=ttt) {
      scrla=scrla+1;
      if (scrla==5) scrla=1;
      scrlda='scrl_'+scrla;
      
      scrlb=scrla+1;
      if (scrlb==5) scrlb=1;
      scrldb='scrl_'+scrlb;
      
      scrlc=scrlb+1;
      if (scrlc==5) scrlc=1;
      scrldc='scrl_'+scrlc;
      
      scrld=scrlb+1;
      if (scrld==5) scrld=1;
      scrldd='scrl_'+scrld;
      
      scrlnum=0;
      
      document.all[scrlda].style.visibility = 'visible' ;
      document.all[scrldb].style.visibility = 'visible' ;
      document.all[scrldd].style.visibility = 'visible' ;
      document.all[scrldc].style.visibility = 'hidden' ;
      document.all[scrldc].style.top = 180 ;//如果改了图片的高度,此处180也需相应改

差值
      }
      setTimeout("scroll()",20)   
      }
       // -->
       </ SCRIPT >

<!-- 以下width = " 375 "  height = " 150 "  为图片固定长宽, 如果更改,则需修改相应数值 -->
                   < span style = " WIDTH: 375px; POSITION: relative; HEIGHT: 150px; "  id = " main2 " >  
                   < div style = " LEFT: 0px; WIDTH: 405px; CLIP: rect(0px 375px 150px 0px); POSITION: absolute; TOP: 0px; HEIGHT: 

150px "  id = " scroll_image " >  

< table width = " 100% "  border = " 0 "  cellpadding = " 0 "  cellspacing = " 0 " >
< tr >
< td >
< div style = " LEFT: 0px; WIDTH: 375px; POSITION: absolute; TOP: 0px; "  id = " scrl_1 " >              
                 < a href = " # "  target = " _blank " >< img src = ""  border = " 0 "  width = " 375 "  height = " 150 " ></ a >
</ div >
< div style = " LEFT: 0px; WIDTH: 375px; POSITION: absolute; TOP: 0px; "  id = " scrl_2 " >              
                 < a href = " # "  target = " _blank " >< img src = ""  border = " 0 "  width = " 375 "  height = " 150 " ></ a >
</ div >
< div style = " LEFT: 0px; WIDTH: 375px; POSITION: absolute; TOP: 0px; "  id = " scrl_3 " >              
                 < a href = " # "  target = " _blank " >< img src = ""  border = " 0 "  width = " 375 "  height = " 150 " ></ a >
</ div >
< div style = " LEFT: 0px; WIDTH: 375px; POSITION: absolute; TOP: 0px; "  id = " scrl_4 " >              
                 < a href = " # "  target = " _blank " >< img src = ""  border = " 0 "  width = " 375 "  height = " 150 " ></ a >
</ div >
</ td >
</ tr >
</ table >
</ span >  
       < SCRIPT >
 scroll();
       </ SCRIPT >
</ td >
</ tr >
</ table >