JavaScript

//selectBox is the selectbox ID, selectall is a boolean whether to select all elements,
//ensureOneSelected applies when false is specified for selectall
//it then ensures that the first element is always selected.

<script>

function selectAll(selectBox, selectAll, ensureOneSelected) {
    // have we been passed an ID
    var selectBoxElement = null;
    var selectBoxOption = null;

    var boolSelect = selectAll;

    if (typeof selectBox == "string") {
        selectBoxElement = document.getElementById(selectBox);
        selectBoxOption = selectBoxElement.options;
    }
    // is the select box a multiple select box?
    if (selectBoxElement.type == "select-multiple") {
        var max = (selectBoxOption.length);

        var modMaxUnrollFactor = (max % 4);

        max -= modMaxUnrollFactor ;

        for(var i = 0; i < max; i+=4){
            selectBoxOption[i].selected = boolSelect;
            selectBoxOption[i + 1].selected = boolSelect;
            selectBoxOption[i + 2].selected = boolSelect;
            selectBoxOption[i + 3].selected = boolSelect;

        }
        for (var i = max; i < selectBoxOption.length; i++) {
            selectBoxOption[i].selected = boolSelect;
        }

        if (typeof ensureOneSelected == "boolean") {
            if(selectBoxOption[0].selected == false)
            {
                selectBoxOption[0].selected = ensureOneSelected;
            }
        }
    }
}
</script>

<script type='text/javascript'>
        function ValidateFileSize(strFUS) {
            var filename = document.getElementById('<%=fuSignature.ClientID%>');

            var myFSO = new ActiveXObject("Scripting.FileSystemObject");

            var filepath = filename.value;

            var thefile = myFSO.getFile(filepath);

            var size = thefile.size;

            if (size / 1024 < 110)
                return true;
            alert('the size of file is big');
            return false;

        }


</script>