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<script language=javascript>

function onlyEng()

{

if(!(event.keyCode>=65&&event.keyCode<=90))

event.returnValue=false;

}

function onlyNum()

{

if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)))

//考慮小鍵盤上的數(shù)字鍵

event.returnValue=false;

}

function isEmail(strEmail) {

if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)

return true;

else

alert("oh");

}

</script>

<div align="center">

<center>

<table border="1" width="90%" cellspacing="0" cellpadding="0" style="font-size:14px" bordercolor="#000000" bordercolorlight="#000000" bordercolordark="#FFFFFF">

<tr>

<td width="100%">只能是漢字:<input onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')"></td>

</tr>

<tr>

<td width="100%">只能是英語(yǔ)字符:<input onkeydown="onlyEng();"></td>

</tr>

<tr>

<td width="100%">只能是數(shù)字:<input onkeydown="onlyNum();"></td>

</tr>

<tr>

<td width="100%">只能是數(shù)字:<input onkeyup="value=value.replace(/[^0-9]/g,'')"></td>

</tr>

<tr>

<td width="100%">只能是英文字母和數(shù)字:<input onkeyup="value=value.replace(/[\W]/g,'') " onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"></td>

</tr>

<tr>

<td width="100%">驗(yàn)證email格式:<input type=text onblur=isEmail(this.value)></td>

</tr>

<tr>

<td width="100%"><a name=2></a><B style='color:black;background-color:#99ff99'>不能輸入漢字</B><INPUT onpaste="return false;" style="IME-MODE: disabled; WIDTH: 400px" value="I only accept English input! Thanks for corporation!" name=textfield> </td>

</tr>

</table>

</center>

</div>