tn1  = new Image
	ts1  = new Image
	tn1.src  = "images/scul_red.gif"
	ts1.src  = "images/scul_gray.gif"
	tn2  = new Image
	ts2  = new Image
	tn2.src  = "images/tap_red.gif"
	ts2.src  = "images/tap_gray.gif"
	tn3  = new Image
	ts3  = new Image
	tn3.src  = "images/pap_red.gif"
	ts3.src  = "images/pap_gray.gif"
	tn4  = new Image
	ts4  = new Image
	tn4.src  = "images/vid_red.gif"
	ts4.src  = "images/vid_gray.gif"
	tn5  = new Image


	ts5  = new Image
	tn5.src  = "images/bio_red.gif"
	ts5.src  = "images/bio_gray.gif"
	tn6  = new Image
	ts6  = new Image
	tn6.src  = "images/cont_red.gif"
	ts6.src  = "images/cont_gray.gif"

    function indWin(pic) {
	resize = 'width=170,height=800,scrollbars=yes'
	picWindow = window.open(pic,'ind',resize)
	picWindow.focus()
    } 

    function selImg(prefix,from,to) {
      	var sel = from + Math.floor( (Math.random()* (1 + to - from)) )
      	var img = "images/" + prefix + sel + ".jpg"
      	return(img)
    }

    function lnkImg(prefix,from,to) {
      	var img = selImg(prefix,from,to)
	var link = "<a href='home.html'>" 
	link +=  "<img src=" +  img + " border=0 ></a>"
	document.write(link)
    }