js 上拉框级联
日期：2014-05-16 浏览次数：20328 次
js 下拉框级联
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MyHtml.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
</head>
<BODY>
<form id="ztga" name="ztga">
<font class="label" style="color: #545454;">选择疾病：</font>
<br>
<font class="label" style="color: #545454;"> 大类：</font>
<select id="infectionType" name="infectionType" style="width: 120"
onchange="cascadeChange(this.value)">
<option value="1" selected="selected">
=请选择=
</option>
<option value="2">
法定传染病
</option>
<option value="3">
其他传染病
</option>
<option value="4">
突发事件
</option>
</select>
<br>
<font class="label" style="color: #545440;"> 小类：</font>
<select name="lb" id="lb" style="width: 120">
<option selected="selected">
=请选择=
</option>
</select>
</form>
</body>
</HTML>
<script language="javascript" type="text/javascript">
function cascadeChange(s){
switch (s){
case "2" :
document.getElementById("lb").options.length=0;
var soojsvalue=[0,1,2,3,4,5,6,7,8,9,10,11,12];
var soojs_text=["鼠疫","霍乱","传染性非典","艾滋病","HIV","甲肝","乙肝","丙肝","戊肝","肝炎（未分型）","痢疾","细菌性痢疾","登革热"];
for (var i=0;i<soojs_value.length;i++){
var oOption = document.createElement("OPTION");
oOption.value=soojs_value[i];
oOption.text=soojs_text[i];
ztga.lb.options.add(oOption);
}break;
case "3" :
document.getElementById("lb").options.length=0;
var soojsvalue=[0,1,2,3,4,5,6,7,8,9];
var soojs_text=["非淋菌性尿道炎","尖锐湿疣","水痘","肝吸虫病","恙虫病","森林脑炎","不明原因肺炎","结核性胸膜炎","人感染猪流菌","其他"];
for ( var i=0;i<soojs_value.length;i++){
var oOption = document.createElement("OPTION");
oOption.value=soojs_value[i];
oOption.text=soojs_text[i];
ztga.lb.options.add(oOption);
}break;
case "4":
document.getElementById("lb").options.length=0;
var soojsvalue=[0,1,2,3,4,5,6,7,8,9,10,11,12];
var soojs_text=["甲类传染病","乙类传染病","丙类传染病","其他传染病","动物性食物中毒","植物性食物中毒","不明食物中毒","农药中毒","空气污染","水污染","土壤污染","群体性不明原因痢疾","医院内感染"];
for (var i=0;i<soojs_value.length;i++){
var oOption = document.createElement("OPTION");
oOption.value=soojs_value[i];
oOption.text=soojs_text[i];
ztga.lb.options.add(oOption);
} break;
default :
document.getElementById("lb").options.length=0;
var oOption = document.createElement("OPTION");
oOption.value=0;
oOption.text="=请选择=";
ztga.lb.options.add(oOption);
}
}
</script>
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