要完成此效果需要两个步骤
第一步：把如下代码加入到<head>区域中
<script>
x=1;
y=5;
linx = new Array()
linx[1] = new Array();
linx[1][1] = "link1";
linx[1][2] = "link2";
linx[1][3] = "link3";
linx[1][4] = "link4";
linx[1][5] = "link5";
linx[2] = new Array();
linx[2][1] = "linkA";
linx[2][2] = "linkB";
linx[2][3] = "linkC";
linx[2][4] = "linkD";
linx[2][5] = "linkE";
linx[3] = new Array();
linx[3][1] = "linkZ";
linx[3][2] = "linkY";
linx[3][3] = "linkX";
linx[3][4] = "linkW";
linx[3][5] = "linkV";
function rollover1() {
document.menu.nav1.value = "Link 1";
document.menu.nav2.value = "Link 2";
document.menu.nav3.value = "Link 3";
document.menu.nav4.value = "Link 4";
document.menu.nav5.value = "Link 5";
document.menu.dummy.value = 1;
x = document.menu.dummy.value;
return(x);
}
function rollover2() {
document.menu.nav1.value = "Link A";
document.menu.nav2.value = "Link B";
document.menu.nav3.value = "Link C";
document.menu.nav4.value = "Link D";
document.menu.nav5.value = "Link E";
document.menu.dummy.value = 2;
x = document.menu.dummy.value;
return(x);
}
function rollover3() {
document.menu.nav1.value = "Link Z";
document.menu.nav2.value = "Link Y";
document.menu.nav3.value = "Link X";
document.menu.nav4.value = "Link W";
document.menu.nav5.value = "Link V";
document.menu.dummy.value = 3;
x = document.menu.dummy.value;
return(x);
}
function go2url(hlink) {
var temp1 = document.menu.dummy.value;
var temp2 = (linx[temp1][hlink]);
window.location = "http://www.jojoo.net/"+temp2+".htm";
}
function rollout() {
for (var j=0; j<y; j++) {
document.menu.elements[j].value = " ";
}
}
</script>
第二步：把如下代码加入到<body>区域中
<div align=center>
<center>
<A HREF="test1.htm" onMouseOver="rollover1()">类目 1</A> |
<A HREF="test2.htm" onMouseOver="rollover2()">类目 2</A> |
<A HREF="test3.htm" onMouseOver="rollover3()">类目 3</A> |
<A HREF="test4.htm" onMouseOver="rollout()">类目 4</A>
<FORM NAME="menu">
<INPUT TYPE="button" name="nav1" value=" " onClick="go2url(1)">
<INPUT TYPE="button" name="nav2" value=" " onClick="go2url(2)">
<INPUT TYPE="button" name="nav3" value=" " onClick="go2url(3)">
<INPUT TYPE="button" name="nav4" value=" " onClick="go2url(4)">
<INPUT TYPE="button" name="nav5" value=" " onClick="go2url(5)">
<INPUT TYPE="hidden" name="dummy" value=""size="3" >
</FORM>
<P>
</center>
</div>
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