JavaScript只允許數(shù)字輸入代碼

    js中的一個只允許數(shù)字輸入的功能，只要將此功能粘貼在js文件或頁面的<script>中即可
    function standMoney(inObject){
    var inStr = inObject.value;
    var i,charValue,outStr,id=0;
    for(i=0;i2) {
    alert(inStr+" bad money style!");
    inObject.focus();
    inObject.select();
    return;
    }
    var dotStr,dotValue;
    if(valueArr.length==2) {
    dotValue = valueArr[1];
    if(dotValue.length==0) {
    dotStr = "";
    }else {
    if(dotValue.length==1)
    dotStr = dotValue;
    else
    dotStr = dotValue.substring(0,2);
    }
    }
    var intArr;
    intArr = valueArr[0].split(",");
    var intValue;
    intValue = "";
    for(i=0;i1 && intValue.charAt(0)=="0" && intValue.charAt(1)!=".") {
    intValue = intValue.substr(1,intValue.length-1);
    }
    while(intValue.length>3) {
    intStr=","+intValue.substring(intValue.length-3,intValue.length) + intStr;
    intValue = intValue.substring(0,intValue.length-3);
    }
    intStr = intValue + intStr;
    if(dotStr==null )
    outStr = intStr;
    else
    outStr = intStr + "." + dotStr;
    inObject.value = outStr;
    return;
    }