//01
trblk=new Image;
trblk.src="../images/site/01off.gif"
trred=new Image;
trred.src="../images/site/01on.gif"

//02
enblk=new Image;
enblk.src="../images/site/02off.gif"
enred=new Image;
enred.src="../images/site/02on.gif"

//03
noneblk=new Image;
noneblk.src="../images/site/03off.gif"
nonered=new Image;
nonered.src="../images/site/03on.gif"

function image_red(image_name){
    image_on=eval(image_name+"red.src");
    document[image_name].src=image_on;
}

function image_blk(image_name){
    image_off=eval(image_name+"blk.src");
    document[image_name].src=image_off;
}