实例14.特殊公告栏效果.html

JSP网页中用到的JavaScript特效

<script language="Javascript">
<!-- 
num=4;
quoteArray = new Array(num);
quoteArray[0]="您喜欢学习javascript吗？";
quoteArray[1]="您喜欢学习vbscript吗？"
quoteArray[2]="您喜欢学习asp吗？"
quoteArray[3]="您喜欢学习asp.net吗？"
quoteArray[4]="您喜欢学习jsp吗？"

quoteS=-1;
function next()
{
  if (quoteS >= num) quoteS=-1;
  quoteS++;
  document.quoteForm.quoteHere.value = quoteArray[quoteS];
}
function prev()
{
  if (quoteS <= 0) quoteS=num+1;
  quoteS--;
  document.quoteForm.quoteHere.value = quoteArray[quoteS];
}
function rand()
{ 
  quoteS = Math.ceil(Math.random() * num);
  document.quoteForm.quoteHere.value = quoteArray[quoteS];
}
//-->
</script>
<form name="quoteForm">
  <textarea name="quoteHere" Rows=3 Cols=50>点击查看信息</textarea><br>
  <input type=button value="下一条" onClick="next();">
  <input type=button value="上一条" onClick="prev();">
  <input type=button value="随机" onclick="rand();">
</form>