以下为示例代码：
<html><title>通过选择项显示不同的结果</title><head><script type="text/javascript">function showdiv(){var doc=document;var citytext=doc.getelementbyid("city").value;var div1=doc.getelementbyid("div1");var div2=doc.getelementbyid("div2");var div3=doc.getelementbyid("div3");switch (citytext){case "广州": div1.setattribute("style","display");div2.setattribute("style","display:none");div3.setattribute("style","display:none");doc.getelementbyid("text1").value=citytext; break;case "南昌": div1.setattribute("style","display:none");div2.setattribute("style","display");div3.setattribute("style","display:none");doc.getelementbyid("text2").value=citytext;break;case "沈阳": div1.setattribute("style","display:none");div2.setattribute("style","display:none");div3.setattribute("style","display");doc.getelementbyid("text3").value=citytext;break;}}</script></head><body><select title="城市" id="city" onchange="showdiv()"><option selected value="广州">广州</option><option value="南昌">南昌</option><option value="沈阳">沈阳</option></select><div id="div1" style="display:none" >您选择了广东的省会<input type="text" id="text1" value=""/></div><div id="div2" style="display:none" >您选择了江西的省会<input type="text" id="text2" value=""/></div><div id="div3" style="display:none" >您选择了辽宁的省会<input type="text" id="text3" value=""/></div></body></html>
以上就是jsp怎么把div隐藏的详细内容。