<!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>
<script language=javascript>
function DBC2SBC(str)
{
var result="";
for(var i=0;i<str.length;i++)
{
code = str.charCodeAt(i);//获取当前字符的unicode编码
if (code >= 65281 && code <= 65373)//在这个unicode编码范围中的是所有的英文字母已经各种字符
{
var d=str.charCodeAt(i)-65248;
result += String.fromCharCode(d);//把全角字符的unicode编码转换为对应半角字符的unicode码
}
else if (code == 12288)//空格
{
var d=str.charCodeAt(i)-12288+32;
result += String.fromCharCode(d);
}
else
{
result += str.charAt(i);
}
}
return result;
}
alert(/^[x00-xff]*$/.test("ｅｅｅ")) ;//判断是否是半角字符
</script>
</BODY>
</HTML>