Js剔除下拉列表
日期：2014-05-16 浏览次数：20345 次
Js删除下拉列表
<!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=utf-8" /> <title>无标题文档</title> <script defer LANGUAGE="javascript"> <!-- var onecount=0; subcat = new Array(); subcat[0] = new Array("徐汇区","01","001"); subcat[1] = new Array("嘉定区","01","002"); subcat[2] = new Array("黄浦区","01","003"); subcat[3] = new Array("南昌市","02","004"); subcat[4] = new Array("九江市","02","005"); subcat[5] = new Array("上饶市","02","006"); onecount=6; function changelocation(locationid){ document.myform.smalllocation.length = 0; var locationid=locationid; var i; document.myform.smalllocation.options[0] = new Option('====所有地区====',''); for (i=0;i <onecount; i++){ if (subcat[i][1] == locationid){ document.myform.smalllocation.options[document.myform.smalllocation.length]= new Option(subcat[i][0], subcat[i][2]); } } } function getSelect1(){ alert("****"); var Myform=document.getElementById('myform'); var Myfieldset=document.createElement("fieldset"); Myfieldset.innerHTML="<select name=\"biglocation\" onChange=\"changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)\"><option value=\"01\" selected>上海</option><option value=\"02\">江西</option></select><select name=\"smalllocation\"><option selected value=\"\">==所有地区==</option></select><input type=\"text\" name=\"SearchTxt\" size=\"30\" id=\"SearchTxt\" />  <input type=\"button\" class=\"input-btn\" value=\"add\" onclick=\"getSelect1()\"/>"; Myform.appendChild(Myfieldset); alert("%%%%%%"); } //--></script> </head> <body> <form id="myform" name="myform" method="post"> <fieldset id="myfieldset"> <select name="biglocation"onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)"> <option value="01" selected>上海</option> <option value="02">江西</option> </select> <select name="smalllocation"> <option selected value="">==所有地区==</option> </select> <input type="text" name="SearchTxt" size="30" id="SearchTxt" />   </fieldset> <input type="button" class="input-btn" value="add" onclick="getSelect1()"/> </form> <script LANGUAGE="javascript"> <!-- changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value); //--></script>&nbs
<!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=utf-8" /> <title>无标题文档</title> <script defer LANGUAGE="javascript"> <!-- var onecount=0; subcat = new Array(); subcat[0] = new Array("徐汇区","01","001"); subcat[1] = new Array("嘉定区","01","002"); subcat[2] = new Array("黄浦区","01","003"); subcat[3] = new Array("南昌市","02","004"); subcat[4] = new Array("九江市","02","005"); subcat[5] = new Array("上饶市","02","006"); onecount=6; function changelocation(locationid){ document.myform.smalllocation.length = 0; var locationid=locationid; var i; document.myform.smalllocation.options[0] = new Option('====所有地区====',''); for (i=0;i <onecount; i++){ if (subcat[i][1] == locationid){ document.myform.smalllocation.options[document.myform.smalllocation.length]= new Option(subcat[i][0], subcat[i][2]); } } } function getSelect1(){ alert("****"); var Myform=document.getElementById('myform'); var Myfieldset=document.createElement("fieldset"); Myfieldset.innerHTML="<select name=\"biglocation\" onChange=\"changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)\"><option value=\"01\" selected>上海</option><option value=\"02\">江西</option></select><select name=\"smalllocation\"><option selected value=\"\">==所有地区==</option></select><input type=\"text\" name=\"SearchTxt\" size=\"30\" id=\"SearchTxt\" />  <input type=\"button\" class=\"input-btn\" value=\"add\" onclick=\"getSelect1()\"/>"; Myform.appendChild(Myfieldset); alert("%%%%%%"); } //--></script> </head> <body> <form id="myform" name="myform" method="post"> <fieldset id="myfieldset"> <select name="biglocation"onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)"> <option value="01" selected>上海</option> <option value="02">江西</option> </select> <select name="smalllocation"> <option selected value="">==所有地区==</option> </select> <input type="text" name="SearchTxt" size="30" id="SearchTxt" />   </fieldset> <input type="button" class="input-btn" value="add" onclick="getSelect1()"/> </form> <script LANGUAGE="javascript"> <!-- changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value); //--></script>&nbs
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