图片漂浮代码-移动后不停止
2013-08-15 00:14:03   来源：   浏览： 次

在浏览器内漂浮，移动后不停止。

<DIV id=img1 style="Z-INDEX: 100; LEFT: 2px; WIDTH: 290px; POSITION: absolute; TOP: 43px; HEIGHT: 114px;
visibility: visible;"><a href="http://www.0550dx.com/" target="_blank"><img src="images/pic.gif" width="290" height="114" border="0"></a></DIV>

<SCRIPT >
var xPos = 300;
var yPos = 200;
var step = 1;
var delay = 30;
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img1.style.top = yPos;
function changePos()
{
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = img1.offsetHeight;
Woffset = img1.offsetWidth;
img1.style.left = xPos + document.body.scrollLeft;
img1.style.top = yPos + document.body.scrollTop;
if (yon)
  {yPos = yPos + step;}
else
  {yPos = yPos - step;}
if (yPos < 0)
  {yon = 1;yPos = 0;}
if (yPos >= (height - Hoffset))
  {yon = 0;yPos = (height - Hoffset);}
if (xon)
  {xPos = xPos + step;}
else
  {xPos = xPos - step;}
if (xPos < 0)
  {xon = 1;xPos = 0;}
if (xPos >= (width - Woffset))
  {xon = 0;xPos = (width - Woffset);   }
}

function start()
  {
   img1.visibility = "visible";
  interval = setInterval('changePos()', delay);
}
function pause_resume()
{
  if(pause)
  {
   clearInterval(interval);
   pause = false;}
  else
  {
   interval = setInterval('changePos()',delay);
   pause = true;
   }
  }
start();
</SCRIPT>