function Defilant(id, pos_init, pos_min, pos_max, delta, direction)
{
	this.id = id;
	this.element = document.getElementById(id);
	this.pos_init = pos_init;
	this.pos_min = pos_min;
	this.pos_max = pos_max;
	this.pos_current = pos_init;
	this.delta = delta;
	this.direction = direction;
}
Defilant.prototype.defile = function()
{
	if (!this.element)
		this.element = document.getElementById(this.id);
	if (this.element)
	{
		if (this.direction == 'vertical')
		{
			if (this.pos_current < (this.pos_min - this.element.offsetHeight))
				this.pos_current = this.pos_init;
			else if (this.pos_current > this.pos_max )
				this.pos_current = this.pos_init - this.element.offsetHeight;
			else this.pos_current += this.delta;
			this.element.style.top = this.pos_current+"px";
		}
		else if(this.direction == 'horizontal')
		{
			if (this.pos_current < (this.pos_min - this.element.offsetWidth))
				this.pos_current = this.pos_init;
			else if (this.pos_current > this.pos_max )
				this.pos_current = this.pos_init - this.element.offsetWidth;
			else this.pos_current += this.delta;
			this.element.style.left = this.pos_current+"px";
		}
	}
}