<!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="">
</HEAD><BODY>
<input type=text name=aa onkeyup="test();"><script>
function test(){
var v=document.all('aa').value;
if(v.search(/[^0-9]/g)!=-1){
alert("只能是数字");
}else{
if(parseInt(v)>100){
alert("不能超过100");
}
}
}
</script>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD><BODY>
<input type=text name=aa onkeyup="test();"><script>
function test(){
var v=document.all('aa').value;
if(v.search(/[^0-9]/g)!=-1){
alert("只能是数字");
}else{
if(parseInt(v)>100){
alert("不能超过100");
}
}
}
</script>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD><BODY>
<input type=text name=aa onkeyup="test();"><script>
function test(){
var v=document.all('aa').value;
if(v.search(/[^0-9]/g)!=-1){
alert("只能是数字");
document.all('aa').value=v.substring(0,v.length-1);
}else{
if(parseInt(v)>100){
alert("不能超过100");
document.all('aa').value=v.substring(0,v.length-1);
}
}
}
</script>
</BODY>
</HTML>
function test()
{
var v=document.all.aa.value;
if(isNaN(v) || parseInt(v)>100)
{
alert("error");
document.all.aa.value='99';
}
}
</script>