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Check for multiple textbox size
var JSUtil = {
    IsTextCountsInRange: function(obj, min, max) {
        if (obj) {
            if (typeof (obj) == "string") {
                var targetElement = document.getElementById(obj);
                if (targetElement && targetElement.value) {
                    return targetElement.value.toString().length >= min && targetElement.value.toString().length <= max;
                } else {
                    return false;
                }
            } else if (typeof (obj) == "object" && obj.value) {
                return obj.value.toString().length >= min && obj.value.toString().length <= max;
            }
        } else {
            return false;
        }
    }
}