function CheckValid(str)
{
var pattern = /^[\w\u0100-\uffff]+$/;
if (pattern.test(str))
return true;
else
{
alert("用户名不能为空或者包含不允许的字符!");
return false;
}
}<form name="register" method="post" action="" onSubmit="return clientform_Validator(this.UID.value)">
<input name="UID" type="text" class="pn-text" id="UID5">
<input name="submit" type=submit>
</form>
{
var pattern = /^[\w\u0100-\uffff]+$/;
if (pattern.test(str))
return true;
else
{
alert("用户名不能为空或者包含不允许的字符!");
return false;
}
}<form name="register" method="post" action="" onSubmit="return clientform_Validator(this.UID.value)">
<input name="UID" type="text" class="pn-text" id="UID5">
<input name="submit" type=submit>
</form>
================================================
<script>
function dd(s){
if (/[^\x00-\xff]/g.test(s.value)) alert("含有汉字");
else alert("全是字符");
}
</script>
<input type="text" onblur="dd(this)">
================================================
<head>
<script language="JavaScript">
<!--
function CheckValid(str)
{
var pattern = /^[\w\u0100-\uffff]+$/;
if (pattern.test(str))
{
alert("ok");
return true;
}else
{
alert("用户名不能为空或者包含不允许的字符!");
return false;
}
}//-->
</script>
</head>
<body>
<form name="register" method="post" action="" onSubmit="return CheckValid(this.UID.value)">
<input name="UID" type="text" class="pn-text" id="UID5">
<input name="submit" type=submit>
</form>
</body>
</html>