?? ch5_examp5.htm
字號:
<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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