input框onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')"
<table><tr><td>放款金额:</td><td><input type="text" id="loanmoney" name="loanmoney" style="width:129px;"onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')"/> <span style="color:red">*请勿输入英文!</span> </td></tr>
</table>var loanmoney = JQuery('#loanmoney').val();
var result = loanmoney.search(/[A-Za-z]+/);
if(result>=0){parent.JQuery.ligerDialog.alert('<div style="padding-top:10px"><span>请正确输入金额!</span></div>', '提示', 'warn', function() { });return;
}