if (document.images)
{

var mm1_init= new Image();
mm1_init.src="images/mm1.jpg";
var mm1_new= new Image();
mm1_new.src="images/mm1_o.jpg";

var mm2_init= new Image();
mm2_init.src="images/mm2.jpg";
var mm2_new= new Image();
mm2_new.src="images/mm2_o.jpg";

var mm3_init= new Image();
mm3_init.src="images/mm3.jpg";
var mm3_new= new Image();
mm3_new.src="images/mm3_o.jpg";

var mm4_init= new Image();
mm4_init.src="images/mm4.jpg";
var mm4_new= new Image();
mm4_new.src="images/mm4_o.jpg";

var mm5_init= new Image();
mm5_init.src="images/mm5.jpg";
var mm5_new= new Image();
mm5_new.src="images/mm5_o.jpg";

var mm6_init= new Image();
mm6_init.src="images/mm6.jpg";
var mm6_new= new Image();
mm6_new.src="images/mm6_o.jpg";

var mm7_init= new Image();
mm7_init.src="images/mm7.jpg";
var mm7_new= new Image();
mm7_new.src="images/mm7_o.jpg";

var mm8_init= new Image();
mm8_init.src="images/mm8.jpg";
var mm8_new= new Image();
mm8_new.src="images/mm8_o.jpg";

var mm9_init= new Image();
mm9_init.src="images/mm9.jpg";
var mm9_new= new Image();
mm9_new.src="images/mm9_o.jpg";

}

function change_it(the_name)
{
	if (document.images)
	{
		document.images[the_name].src= eval(the_name + "_new.src");
	}
}

function change_back(the_name)
{
	if (document.images)
	{
		document.images[the_name].src= eval(the_name + "_init.src");
	}
}