var ImageSwitch = Class.create();

ImageSwitch.prototype = {
    initialize: function(imageId, imageFile, imageIdParent){
		this.imageId = $(imageId);
        this.imageFile = imageFile;
        this.imageIdParent = $(imageIdParent);
        this.imageFileParent = this.imageIdParent.src;
       
        Event.observe($(imageId), 'mouseover', this.mouseOver.bind(this));
        Event.observe($(imageId), 'mouseout', this.mouseOut.bind(this));
    },

    mouseOver: function()
    {
    	this.imageIdParent.src = this.imageFile;
        return this;
    },

    mouseOut: function()
    {
    	this.imageIdParent.src = this.imageFileParent;
    }
}