Show the html5 input type range values

show_range_values.js

// show the html5 input type range values
function show_ranges() {
  // selector and classname on the range value
  var selector = "input[type=range]",
    class_name = "range-value";
  
  // get the range values with jquery
  var ranges = $(selector);

  // check for support for the html5 range input and then show the value from the range
  if (ranges[0] && ranges[0].type == "range") {
  	for (k in ranges) {
  		// show the value on init
  		show_value_from_range(ranges[k]);
  		// change the value on change
  		ranges[k].onchange = function(e) {
  			show_value_from_range(this);
  		};
  	}
  }
  // show the values in the label
  function show_value_from_range(el) {
    //  get the elements label
  	var label = $('label[for='+el.id+']');
    // check if the element exists - if it does: remove it
  	if ($("span."+class_name, label).is("*") != false) {
  		$("span."+class_name, label).remove();
  	}
    // create the range element ...
  	var range_val_el = $('<span class="'+class_name+'">'+el.value+'</span>');
    // ... and append it to the label
  	range_val_el.appendTo(label);
  };
};