jQuery UI Range Slider Loader

gistfile1.js

// Allows sliders to be dynamically initiated more easily
// Adds validation for min and max number input boxes
// Minimizes code if many sliders are on a page


var searchSlider = {
    init: function(selector, range_min, range_max){
        var input_min = $(selector).parents('.slider-wrapper').find('.min'),
            input_max = $(selector).parents('.slider-wrapper').find('.max');

        $(selector).slider({
            range: true,
            min: range_min,
            max: range_max,
            step: 0.01,
            values: [ range_min, range_max ],
            stop: function(e,ui){               
                console.log(selector + ', Min Size: ' + ui.values[0] + ', Max Size: ' + ui.values[1]);              
                //send values to ajax search   
            },
            slide: function(e,ui){
                $(input_min).val(ui.values[0]);
                $(input_max).val(ui.values[1]);
            }
        });

        // grab the initialized slider min and max
        $(input_min).val($(selector).slider('values',0)); 
        $(input_max).val($(selector).slider('values',1));
    },
    rememberValue: function(){
        searchSlider.old_input_val = $(this).val();
    },
    update: function() {
        var target_obj    = $(this); //focused slider value input box
        var target_slider = $(target_obj).parents('.slider-wrapper').find('.ui-slider');
        var max           = $(target_slider).slider('option','max'); //the set min based on slider init
        var min           = $(target_slider).slider('option','min');
        var c_min         = $(target_slider).slider('values', 0); //current min slider handle value
        var c_max         = $(target_slider).slider('values', 1);
        var input_val     = $(target_obj).val();
        
        var isNumber = function(n) {
            return !isNaN(parseFloat(n)) && isFinite(n);
        }

        if (isNumber(input_val)) {
            if ($(target_obj).hasClass('min')){
                if (input_val >= min && input_val <= c_max) { //normal range
                    $(target_slider).slider('values', 0, input_val);
                }
                else if (input_val < min) {
                    $(target_slider).slider('values', 0, min);
                    $(target_obj).val(min); 
                }
                else if (input_val > c_max) {
                    $(target_slider).slider('values', 0, c_max);
                    $(target_obj).val(c_max); 
                }
            }
            else if ($(target_obj).hasClass('max')) {
                if (input_val >= c_min && input_val <= max) { //normal range
                    $(target_slider).slider('values', 1, input_val);
                }
                else if (input_val > max) {
                    $(target_slider).slider('values', 1, max);
                    $(target_obj).val(max); 
                }
                else if (input_val < c_min) {
                    $(target_slider).slider('values', 1, c_min);
                    $(target_obj).val(c_min); 
                }
            }  
        }
        else { //fails number validation, revert
            $(target_obj).val(searchSlider.old_input_val); 
        }
    }
}

$(function() {
    searchSlider.init('#slider-width', 0.20, 8.5); //slider id, min value, max value
    searchSlider.init('#slider-height', 0.20, 11);

    $('.slider-value').focus(searchSlider.rememberValue).change(searchSlider.update);
});