Prototype.Jump = Class.create();
Prototype.Jump.prototype = {
	initialize: function() {
		this.elements = document.getElementsByClassName('jump');
		for (var i = 0; i < this.elements.length; i++)
		{
			 Event.observe(this.elements[i], 'change', this.submitForm.bind(this), false);
		}
	},
	
	submitForm: function(evt) {
		this.form = Event.findElement(evt, 'form');
		this.form.submit();
	}
}

Event.observe(window, 'load', initJump, false);

	function initJump() {
			var jump = new Prototype.Jump();
	}