function light()
{
	this.pos = new vector(0.0,0.0,0.0);
	this.diff = new color(0,0,0);
	this.spec = new color(0,0,0);
	this.ambt = new color(0,0,0);
};

light.prototype.init = function(in_pos, in_diff, in_spec, in_ambt )
{
	this.pos = in_pos;
	this.diff = in_diff;
	this.spec = in_spec;
	this.ambt = in_ambt;
}

light.prototype.eq = function(in_l)
{
	this.pos = in_l.pos.clone();
	this.diff = in_l.diff.clone();
	this.spec = in_l.spec.clone();
	this.ambt = in_l.ambt.clone();
	
	return this;
}                
    
light.prototype.clone = function()
{
	var l_out = new light();
	l_out.eq(this);	

	return l_out;
}