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js function code to limit text box to integer and currency_form special effects

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WBOYOriginal
2016-05-16 18:18:43847browse

Limited to integers

<html>
<head>
<script language="javascript" type="text/javascript">
 var G=document.getElementById;
 function checkNumber(){
  var reg = /^(&#63;:0|[1-9][0-9]&#63;|100)$/;
   
  var strNumber = G("txtNumber").value;
  alert(reg.test(strNumber))
 }
</script>
</head>
<body >
<input type="text" value="" id="txtNumber" title="Please enter a number witch between 0 and 100 ..">
<button onclick="checkNumber();">CheckNumber</button>
</body>
</html>

Limited to currency 

<script language="JavaScript" type="text/javascript">
<!--
function checkMoney(obj){
var tempValue=obj.value.replace(/(^\s+)|(\s+$)/g,'');
if(!tempValue){return;}
if(/^-&#63;\d+(\.\d+)&#63;$/.test(tempValue)){
obj.value=parseFloat(tempValue).toFixed(2);
}else{
alert('请输入合法的货币值！');
obj.select();
return;
}
}
//-->
</script>
onblur="checkMoney(this)"
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