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              <form action="" method="post">

<div class="form-input">

<label for="myinput">Select a Value</label>
<select name="myinput" id="myinput">
	<option value="1">This</option>
	<option value="2" selected>That</option>
	<option value="3">The other</option>
	<option value="4">Another</option>
	<option value="5">Neither</option>
</select>

</div>

</form>
            
          
!
            
              .form-input {
	position: relative;
	max-width: 400px;
	margin: 50px auto;
	font-family: sans-serif;
}

.form-input label {
	display: block;
	padding: .5em 0;
}

.slider {
	position: relative;
	width: 100%;
	margin: 20px 0 20px 0;
}

.slider-container {
	position: relative;
	box-sizing: border-box;
	width: 100%;
	height: 48px;
	padding: 6px;
	background: #ddd;
	border-radius: 4px;
}

.slider-channel {
	box-sizing: border-box;
	margin: 0;
	height: 36px;
	background: #f8f8f8;
	border: 1px solid #467;
	border-radius: 4px;
	box-shadow: 0 0 2px 1px rgba(255,255,255,.9);
}

.slider-slider {
	position: absolute;
	top: 7px;
	left: 0;
	z-index: 10;
	width: 58px;
	height: 32px;
}

.slider-slider:after {
	display: block;
	position: absolute;
	top: 0px;
	left: 7px;
	width: 42px;
	height: 32px;
	content: '';
	background: #467;
	border: 1px solid #fff;
	border-radius: 4px;
	box-shadow: 0 0 1px rgba(0,0,0,.9);
}

.slider-min {
	position: relative;
	margin-top: 20px;
}

.slider-max {
	position: absolute;
	right: 0;
	bottom: 0;
}

.slider-plus,
.slider-minus {
	position: absolute;
	top: 0;
	right: 6px;
	padding: .5em;
	height: 1em;
	width: 1em;
	color: #467;
	line-height: 1em;
	text-align: center;
	background: #f8f8f8;
	border: 1px solid #467;
	border-radius: 4px;
	box-shadow: 0 0 0 6px #ddd;
}

.slider-minus {
	right: 3em;
}
            
          
!
            
              var sliders = [];

var Slider = function( input ) {

	var that = this;

	this.input = input;
	this.minText;
	this.maxText;
	this.min;
	this.max;
	this.increment;
	this.options;
	this.currentValue;
	this.val;
	this.slider;
	this.plus;
	this.minus;

	this.init = function() {
		this.currentValue = 0;
		if ( this.input.type == 'select-one' ) {
			this.setOptions();
		}
		else {
			this.setDataAttr();
		}
		
		this.build();
		this.setSliderPosition();
		this.hideInput();
		this.setEvents();
	}

	this.setOptions = function() {
		var options = this.input.options;
		var val = 0;
		
		this.options = {};
		for ( var i = 0; i < options.length; i++ ) {
			this.options[i] = {
				'value': options[i].value,
				'text': options[i].text
			};
			if ( this.input.value == options[i].value ) {
				this.currentValue = i;
			}
		}
		
		this.min = 0;
		this.minText = this.options[0].text;
		this.max = options.length - 1;
		this.maxText = this.options[options.length - 1].text;
		this.increment = 1;
	}

	this.setDataAttr = function() {
		this.min 			= this.input.getAttribute( 'data-min' );
		this.minText 	= this.input.getAttribute( 'data-min-text' );
		this.max 			= this.input.getAttribute( 'data-max' );
		this.maxText 	= this.input.getAttribute( 'data-max-text' );
		this.increment 	= this.input.getAttribute( 'data-increment' );

		this.currentValue = +this.input.value;
	}

	this.build = function() {

		var d = this.create( 'div', 'slider', this.input.parentNode );
		var dc = this.create( 'div', 'slider-container', d );
		var sc = this.create( 'div', 'slider-channel', dc );
		this.slider = this.create( 'div', 'slider-slider', dc );
		var dmin = this.create( 'div', 'slider-min', d );
		dmin.textContent = this.minText;
		var dmax = this.create( 'div', 'slider-max', d );
		dmax.textContent = this.maxText;

		var l = this.input.parentNode.getElementsByTagName('label')[0];
		l.textContent = l.textContent + ': ';

		this.val = this.create( 'span', 'slider-value', l );
		this.setVal( this.currentValue );
		
		this.plus = this.create( 'div', 'slider-plus', input.parentNode );
		this.plus.textContent = '+';

		this.minus = this.create( 'div', 'slider-minus', input.parentNode );
		this.minus.textContent = '-';
	}

	this.create = function( el, cl, par ) {
		var n = document.createElement( el );
		n.className = cl;
		par.appendChild( n );
		return n;
	}

	this.hideInput = function() {
		this.input.style.display = 'none';
	}

	this.setEvents = function() {
		addEvent( 'touchstart', this.slider, this.move );
		addEvent( 'touchmove', this.slider, this.move );
		addEvent( 'click', this.plus, this.add );
		addEvent( 'click', this.minus, this.subtract );
	}

	this.move = function(e) {

		if ( typeof e == 'undefined' ) e = window.event;
		e.preventDefault();

		var s = e.target;
		var tX = e.changedTouches[0].pageX;
		var sRect = s.getBoundingClientRect();
		var parentRect = s.parentNode.getBoundingClientRect();
		var minX = parentRect.left;
		var maxX = parentRect.right - s.offsetWidth;

		var newX = tX - minX - ( s.offsetWidth / 2 );

		if ( newX < 0 ) {
			newX = 0;
		}
		else if ( newX > s.parentNode.offsetWidth - s.offsetWidth ) {
			newX = s.parentNode.offsetWidth - s.offsetWidth;
		}

		s.style.left = newX + 'px';

		var percent = newX / ( maxX - minX );
		var range = that.max - that.min;
		var val = +that.min + range*percent;
		val = Math.floor( val / that.increment ) * that.increment;
		that.setVal( val );
	}

	this.add = function(e) {
		if ( typeof e == 'undefined' ) e = window.event;
		e.preventDefault()
		var val = +that.currentValue + +that.increment;
		if ( val > that.max ) val = that.max;
		that.setVal( val );
		that.setSliderPosition();
	}

	this.subtract = function(e) {
		if ( typeof e == 'undefined' ) e = window.event;
		e.preventDefault();
		var val = +that.currentValue - +that.increment;
		if ( val < that.min ) val = that.min;
		that.setVal( val );
		that.setSliderPosition();
	}

	this.setSliderPosition = function() {
		var rangeX = this.slider.parentNode.offsetWidth - this.slider.offsetWidth;
		var percent = ( +this.currentValue - this.min ) / ( this.max - this.min );
		var newX = Math.floor( rangeX * percent );
	
		this.slider.style.left = newX + "px";	}

	this.setVal = function( val ) {
		this.currentValue = val;
		if ( typeof this.options == 'object' ) {
			this.setSelectVal( val );
		}
		else {
			this.setInputVal( val );
		}
	}

	this.setInputVal = function( val ) {
		this.val.textContent = val.toFixed();
		this.input.value = val.toFixed();
	}

	this.setSelectVal = function( val ) {
		this.val.textContent = this.options[val].text;
		this.input.value = this.options[val].value;
	}
}

var addEvent = function( type, obj, func ) {
	if ( obj && obj.addEventListener ) {
		obj.addEventListener( type, func, false );
	}
	else if ( obj && obj.attachEvent ) {
		obj.attachEvent( 'on' + type, func );
	}
}

var init = function() {
	var forms = document.forms;
	var inputs = forms[0].elements;
	var count = inputs.length;
	for ( var i = 0; i < count; i++ ) {
		sliders[i] = new Slider( inputs[i] );
		sliders[i].init();
	}
}

init();

            
          
!
999px
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