📄 ch5_examp5.htm

📁 javascript source code part1

💻 HTM

字号:

<HTML>
<HEAD>

<SCRIPT LANGUAGE=JavaScript>

var myImages = new Array("usa.gif","canada.gif","jamaica.gif","mexico.gif");

function changeImg(imgNumber)
{
   var imgClicked = document.images[imgNumber];
   var newImgNumber = Math.round(Math.random() * 3);

   while (imgClicked.src.indexOf(myImages[newImgNumber]) != -1)
   {
      newImgNumber = Math.round(Math.random() * 3);
   }

   imgClicked.src = myImages[newImgNumber];
   return false;
}

</SCRIPT>
</HEAD>

<BODY>

<A HREF="" NAME="linkImg1" onclick="return changeImg(0)">
   <IMG NAME=img1 SRC="usa.gif" BORDER=0 >
</A>

<A HREF="" NAME="linkImg2" onclick="return changeImg(1)">
   <IMG NAME=img1 SRC="mexico.gif" BORDER=0 >
</A>

</BODY>
</HTML>

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