两个应该算简单的问题,求救! a=22if(Number(a)>0 && Number(a)<=100) return falseelsereturn true 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Sorry:翻了:a=22if(Number(a)>=0 && Number(a)<=100) return trueelsereturn false<body><script>function a(n){if(n=="") returnfor(i=n*10-10;i<n*10;i++)document.all.m.selectedIndex=i}</script><select id=m multiply size=10> <option>1<option>2<option>3<option>4<option>5<option>6<option>7<option>8<option>9<option>10<option>11<option>12<option>13<option>14<option>15<option>16<option>17<option>18<option>19<option>20</select><input type=radio onclick="a(1)" name=a>1-10<input type=radio onclick="a(2)" name=a>10-20依次类推 <body><script>function a(val,obj){obj.length=0;for(i=0;i<10;i++)obj[obj.length++].text=val*10+i+1}</script><select id=m onchange=a(selectedIndex,n)> <script>for(i=0;i<10;i++)document.write("<option>"+(i*10+1)+"-"+(i+1)*10+"</option>")</script></select><select id=n > <script>for(i=0;i<10;i++)document.write("<option>"+(i+1)+"</option>")</script></select> 第2个问题是这个意思<select id=m size=1> <option >广东<option>湖南</select><select id=m1 size=1> <option >广州<option>深圳<option>长沙<option>岳阳<option>株洲</select>第一个选中广东那么第二个的下拉框中就是广州和深圳,选中湖南,就是长沙岳阳和株洲,这些值都是从数据库中动态取得的谢谢 <script LANGUAGE="javascript"> <!-- var onecount; 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]); } } } //--> </script> <form name="myform" method="post"> <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> </form> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> New Document </TITLE><META NAME="Generator" CONTENT="EditPlus"><META NAME="Author" CONTENT=""><META NAME="Keywords" CONTENT=""><META NAME="Description" CONTENT=""><SCRIPT LANGUAGE="JavaScript"><!--function dep(depID,depName,braID){ this.ID = depID; this.Name = depName; this.braID = braID;}function bra(braID,braName){ this.ID = braID; this.Name = braName; this.Depts = new Array();}var braLst = new Array();var depLst = new Array();braLst[0] = new bra(1,"红地");braLst[1] = new bra(2,"凯德");depLst[0] = new dep(1,"行政部",1);depLst[1] = new dep(2,"开发部",1);depLst[2] = new dep(3,"市场部",1);depLst[3] = new dep(4,"投资部",2);depLst[4] = new dep(5,"证券部",2);for (var i=0;i<depLst.length;i++){ for (var j=0;j<braLst.length;j++){ if ( depLst[i].braID==braLst[j].ID){ braLst[j].Depts[braLst[j].Depts.length] = depLst[i]; } }}function getDepts(braID){ var braObj = null; for (var i=0;i<braLst.length;i++){ if (braLst[i].ID == braID) { braObj = braLst[i]; break; } } document.thisForm.depSel.options.length=0; if (braObj != null){ for (var i=0;i<braObj.Depts.length;i++){ var tmp; tmp = new Option(braObj.Depts[i].Name,braObj.Depts[i].ID); document.thisForm.depSel.options[document.thisForm.depSel.options.length] = tmp } }}//--></SCRIPT></HEAD><FORM METHOD=POST ACTION="" name="thisForm"><SELECT NAME="braSel" onchange="getDepts(this.value);"><SCRIPT LANGUAGE="JavaScript"><!-- for (var i=0;i<braLst.length;i++){ document.write("<option value=\"" + braLst[i].ID + "\">" + braLst[i].Name + "</option>"); }//--></SCRIPT></SELECT><SELECT NAME="depSel"></SELECT></FORM><BODY></BODY></HTML> easyui layout 布局问题 如何在一个div中显示另一个网页中的一部分~~ 关于js函数传值 Flash CS3 脚本问题 (表单验证),会员名须以字母开头,帮帮忙 谢了 替换问题 帮忙看看自刷新的问题 如何用下拉列表实现头像的显示??? windwo.open方法打开窗口时,关闭源窗口??? innerHTML引入script 关于准确判断一个月有多少天的问题? 高手帮忙!关于超链接!
翻了:a=22
if(Number(a)>=0 && Number(a)<=100) return true
else
return false
<body>
<script>
function a(n){
if(n=="") return
for(i=n*10-10;i<n*10;i++)
document.all.m.selectedIndex=i
}
</script>
<select id=m multiply size=10>
<option>1
<option>2
<option>3
<option>4
<option>5
<option>6
<option>7
<option>8
<option>9
<option>10
<option>11
<option>12
<option>13
<option>14
<option>15
<option>16
<option>17
<option>18
<option>19
<option>20
</select>
<input type=radio onclick="a(1)" name=a>1-10
<input type=radio onclick="a(2)" name=a>10-20依次类推
<script>
function a(val,obj){
obj.length=0;for(i=0;i<10;i++)obj[obj.length++].text=val*10+i+1
}
</script>
<select id=m onchange=a(selectedIndex,n)>
<script>for(i=0;i<10;i++)document.write("<option>"+(i*10+1)+"-"+(i+1)*10+"</option>")</script>
</select>
<select id=n >
<script>for(i=0;i<10;i++)document.write("<option>"+(i+1)+"</option>")</script>
</select>
<select id=m size=1>
<option >广东
<option>湖南
</select>
<select id=m1 size=1>
<option >广州
<option>深圳
<option>长沙
<option>岳阳
<option>株洲
</select>第一个选中广东那么第二个的下拉框中就是广州和深圳,选中湖南,就是长沙岳阳和株洲,这些值都是从数据库中动态取得的谢谢
<!--
var onecount;
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]);
}
} } //-->
</script> <form name="myform" method="post">
<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>
</form>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<SCRIPT LANGUAGE="JavaScript">
<!--
function dep(depID,depName,braID){
this.ID = depID;
this.Name = depName;
this.braID = braID;
}
function bra(braID,braName){
this.ID = braID;
this.Name = braName;
this.Depts = new Array();
}
var braLst = new Array();
var depLst = new Array();
braLst[0] = new bra(1,"红地");
braLst[1] = new bra(2,"凯德");
depLst[0] = new dep(1,"行政部",1);
depLst[1] = new dep(2,"开发部",1);
depLst[2] = new dep(3,"市场部",1);
depLst[3] = new dep(4,"投资部",2);
depLst[4] = new dep(5,"证券部",2);
for (var i=0;i<depLst.length;i++){
for (var j=0;j<braLst.length;j++){
if ( depLst[i].braID==braLst[j].ID){
braLst[j].Depts[braLst[j].Depts.length] = depLst[i];
}
}
}
function getDepts(braID){
var braObj = null;
for (var i=0;i<braLst.length;i++){
if (braLst[i].ID == braID) {
braObj = braLst[i];
break;
}
}
document.thisForm.depSel.options.length=0;
if (braObj != null){
for (var i=0;i<braObj.Depts.length;i++){
var tmp;
tmp = new Option(braObj.Depts[i].Name,braObj.Depts[i].ID);
document.thisForm.depSel.options[document.thisForm.depSel.options.length] = tmp
}
}
}
//-->
</SCRIPT>
</HEAD>
<FORM METHOD=POST ACTION="" name="thisForm">
<SELECT NAME="braSel" onchange="getDepts(this.value);">
<SCRIPT LANGUAGE="JavaScript">
<!--
for (var i=0;i<braLst.length;i++){
document.write("<option value=\"" + braLst[i].ID + "\">" + braLst[i].Name + "</option>");
}
//-->
</SCRIPT>
</SELECT>
<SELECT NAME="depSel"></SELECT>
</FORM>
<BODY></BODY>
</HTML>