(function($){
    $.fn.extend({
		gasmix: function(options){
			
			var defaults = {
			}
			
			var options = $.extend(defaults, options);
			
			return this.each(function(){
				var o = options;
				var obj = $(this)
				
				obj.append('Pata: <input type="text" id="gmpata" class="" size="3" value="">');
				obj.append('<br>');
				obj.append('Gas: <input type="text" id="gmgas" size="3" value="">');
				obj.append('Depth: <input type="text" id="gmdepth" size="3" value="">');
				
				$("#gmpata").val(1.4);
				$("#gmgas").val(21);
				$("#gmdepth").val(20);
				
				$("#gmpata, #gmgas, #gmdepth").change(function(){
					console.log($(this).val());
				});
			});
		}
	});
})(jQuery)