javascript验证输入框问题

[helpmeplzplz]

问题是这样的：在一个页面上有22个输入框，名称从“price1”到“price22”，我想在提交的时候验证一下文本框的内容（不能为空，而且要是数字），我是这么写的，各位帮忙看看，哪不对~
<script language="javascript">
function checkForm()
{
var f=document.frmAdd;
var msg="请填写有效数据";
var priceicount = "price";
for(var icount = 1; icount < 23; icount++) {
priceicount = "price" + icount;
if (f.priceicount.value==""||isNaN(f.priceicount.value)==true)
{
alert(msg);
f.priceicount.focus();
return false;
}
}
}
</script>
谢谢各位~

[zhouguoyao]

<script language="javascript">
function checkForm()
{
var f=document.frmAdd;
var msg="请填写有效数据";
var priceicount = "price";
var patrnN=/^[0-9]*$/
for(var icount = 1; icount < 23; icount++) {
priceicount = "price" + icount;
if (f.priceicount.value==""||!patrnN.exec(f.priceicount.value)
{
alert(msg);
f(priceicount).focus();
return false;
}
}
}
</script>

[kisslan]

<script language="javascript">
function checkForm()
{
var f=document.frmAdd;
var msg="请填写有效数据";
var priceicount = "price";
var patrnN=/^[0-9]*$/
for(var icount = 1; icount < 23; icount++) {
priceicount = "price" + icount;
if (f(priceicount).value==""||!patrnN.exec(f(priceicount).value))
{
alert(msg);
f(priceicount).focus();
return false;
}
}
}
</script>

[nameldw]

同意楼上的

[shyslysky]

priceicount = "price" + icount;

try to change icount into icount.toString()

[shyslysky]

<script language="javascript">
function checkForm()
{
var msg="请填写有效数据";
var priceicount = "price";
for(var icount = 1; icount < 23; icount++) {
priceicount = "price" + icount;
if (document.getElementById(priceicount).value==""||isNaN(document.getElementById(priceicount).value))
{
alert(msg);
document.getElementById(priceicount).focus();
return false;
}
}
}
</script>