m1_off = new Image();
m1_off.src = "../images/m1_img.jpg";
m1_ovr = new Image();
m1_ovr.src = "../images/m1o_img.jpg";

m2_off = new Image();
m2_off.src = "../images/m2_img.jpg";
m2_ovr = new Image();
m2_ovr.src = "../images/m2o_img.jpg";

m2r_off = new Image();
m2r_off.src = "../images/m2r_img.jpg";
m2r_ovr = new Image();
m2r_ovr.src = "../images/m2ro_img.jpg";

m3_off = new Image();
m3_off.src = "../images/m3_img.jpg";
m3_ovr = new Image();
m3_ovr.src = "../images/m3o_img.jpg";

m3c_off = new Image();
m3c_off.src = "../images/m3c_img.jpg";
m3c_ovr = new Image();
m3c_ovr.src = "../images/m3co_img.jpg";

m4_off = new Image();
m4_off.src = "../images/m4_img.jpg";
m4_ovr = new Image();
m4_ovr.src = "../images/m4o_img.jpg";

m4c_off = new Image();
m4c_off.src = "../images/m4c_img.jpg";
m4c_ovr = new Image();
m4c_ovr.src = "../images/m4co_img.jpg";

m5_off = new Image();
m5_off.src = "../images/m5_img.jpg";
m5_ovr = new Image();
m5_ovr.src = "../images/m5o_img.jpg";

m5c_off = new Image();
m5c_off.src = "../images/m5c_img.jpg";
m5c_ovr = new Image();
m5c_ovr.src = "../images/m5co_img.jpg";

m6_off = new Image();
m6_off.src = "../images/m6_img.jpg";
m6_ovr = new Image();
m6_ovr.src = "../images/m6o_img.jpg";



function on(img)
{
var imgovr = eval(img + "_ovr.src");
document[img].src = imgovr;
}


function off(img)
{
var imgoff = eval(img + "_off.src");
document[img].src = imgoff;
}