function sl_mouse_out(t){
    t.src=t.src.replace(/ON/,"OFF");
}
function sl_mouse_over(t){
    t.src=t.src.replace(/OFF/,"ON");
}

function sl_mouse_down(t){
    t.src=t.src.replace(/OFF/,"CLICK");
    t.src=t.src.replace(/ON/,"CLICK");
}
function sl_mouse_up(t){
    t.src=t.src.replace(/CLICK/,"ON");
}

function sl_nav_over(t,y){
    $(t).css("background-position","0px " + y)
}

function sl_nav_out(t,y){
    $(t).css("background-position","0px " + y)
}

function shop_over(t,y,d,c){
    $(t).css("background-position","0px " + y)
    $(d).css("color",c);
}