<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>jQuery 二级联动</title>
<script type="text/javascript">
var group = new Object(); group["无"] = new Array("无");
group["铜管类"] = new Array("无", "小号", "长号", "圆号", "大号", "次中音号");
group["木管类"] = new Array("无", "长笛", "单簧管(降B)", "双簧管", "巴松", "萨克斯(低音)");
group["弦乐类"] = new Array("无", "小提琴", "中提琴", "大提琴", "低音提琴", "竖琴");
group["打击乐类"] = new Array("无", "西洋打击乐", "民族打击乐");
group["民乐类"] = new Array("无", "二胡", "中胡", "高胡", "琵琶", "柳琴", "中阮", "大阮", "三弦", "唢呐", "竹笛", "笙", "扬琴");
group["声乐类"] = new Array("无", "民族唱法", "美声唱法");
group["舞蹈类"] = new Array("无", "古典舞", "民间舞", "芭蕾舞", "现代舞");
group["戏剧类"] = new Array("无", "话剧", "戏曲");
group["主持类"] = new Array("无", "主持");
group["曲艺类"] = new Array("无", "相声", "评书", "大鼓", "快板"); function onselect(id1, id2) {
var drop1 = document.getElementById(id1);
var drop2 = document.getElementById(id2); while (drop2.options.length != 0) {
drop2.options[0] = null;
}
var i = 0; for (i = 0; i < group[drop1.value].length; i++) {
var op = document.createElement("OPTION");
op.value = group[drop1.value][i];
op.text = group[drop1.value][i];
drop2.options.add(op);
}
} function firstload(id1, id2, value1, value2) {
var drop1 = document.getElementById(id1);
var drop2 = document.getElementById(id2); for (var i = 0; i < drop1.options.length; i++) {
if (drop1.options[i].value == value1)
drop1.options[i].selected = true;
} onselect(id1, id2); for (var i = 0; i < drop2.options.length; i++) {
if (drop2.options[i].value == value2)
drop2.options[i].selected = true;
}
}
</script>
</head>
<body>
<div align="center">
<select name="drop_zl" id="drop_zl" onchange="onselect('drop_zl','drop_zx')" style="background-color: LemonChiffon;
width: 116px;">
<option selected="selected" value="无">无</option>
<option value="铜管类">铜管类</option>
<option value="木管类">木管类</option>
<option value="弦乐类">弦乐类</option>
<option value="打击乐类">打击乐类</option>
<option value="民乐类">民乐类</option>
<option value="声乐类">声乐类</option>
<option value="舞蹈类">舞蹈类</option>
<option value="戏剧类">戏剧类</option>
<option value="主持类">主持类</option>
<option value="曲艺类">曲艺类</option>
</select>
<select name="drop_zx" id="drop_zx" style="background-color: LemonChiffon; width: 116px;">
</select>
</div>
</body>
</html>
我自己做了一个js的二级联动,可是只能在ie下用,在chrome和搜狗高速下用,第二级菜单刷新不出来,求大神指导!!万分感谢!!!
function OnSelect(id1, id2) {
var drop1 = document.getElementById(id1);
var drop2 = document.getElementById(id2);
while (drop2.options.length != 0) {
drop2.options[0] = null;
}
var i = 0;
for (i = 0; i < group[drop1.value].length; i++) {
var op = document.createElement("OPTION");
op.value = group[drop1.value][i];
op.text = group[drop1.value][i];
drop2.options.add(op);
}
}
<select name="drop_zl" id="drop_zl" onchange="OnSelect('drop_zl','drop_zx')" style="background-color: LemonChiffon;
width: 116px;">