imgabout_on = new Image(125,25);
	imgabout_on.src="images/about_ro.jpg";
	imgabout_off = new Image(125,25);
	imgabout_off.src="images/about.jpg";

imglocation_on = new Image(125,25);
	imglocation_on.src="images/location_ro.jpg";
	imglocation_off = new Image(125,25);
	imglocation_off.src="images/location.jpg";
	
imgitinerary_on = new Image(125,25);
	imgitinerary_on.src="images/itinerary_ro.jpg";
	imgitinerary_off = new Image(125,25);
	imgitinerary_off.src="images/itinerary.jpg";
	
imgexhibitors_on = new Image(125,25);
	imgexhibitors_on.src="images/exhibitors_ro.jpg";
	imgexhibitors_off = new Image(125,25);
	imgexhibitors_off.src="images/exhibitors.jpg";	

imgraffle_on = new Image(125,25);
	imgraffle_on.src="images/raffle_ro.jpg";
	imgraffle_off = new Image(125,25);
	imgraffle_off.src="images/raffle.jpg";	

imgcontests_on = new Image(125,25);
	imgcontests_on.src="images/contests_ro.jpg";
	imgcontests_off = new Image(125,25);
	imgcontests_off.src="images/contests.jpg";	
	
imgactivities_on = new Image(125,25);
	imgactivities_on.src="images/activities_ro.jpg";
	imgactivities_off = new Image(125,25);
	imgactivities_off.src="images/activities.jpg";	
	
imghelpingout_on = new Image(125,25);
	imghelpingout_on.src="images/helpingout_ro.jpg";
	imghelpingout_off = new Image(125,25);
	imghelpingout_off.src="images/helpingout.jpg";	
	
imgpreregister_on = new Image(125,25);
	imgpreregister_on.src="images/preregister_ro.jpg";
	imgpreregister_off = new Image(125,25);
	imgpreregister_off.src="images/preregister.jpg";	
	
imgcontactus_on = new Image(125,25);
	imgcontactus_on.src="images/contactus_ro.jpg";
	imgcontactus_off = new Image(125,25);
	imgcontactus_off.src="images/contactus.jpg";	
	
imgthanks_on = new Image(125,25);
	imgthanks_on.src="images/thanks_ro.jpg";
	imgthanks_off = new Image(125,25);
	imgthanks_off.src="images/thanks.jpg";	
	
	
	function over_image(parm_name)
	    {
	        document[parm_name].src = eval(parm_name + "_on.src");
	    }
	function off_image(parm_name)
	    {
	        document[parm_name].src = eval(parm_name + "_off.src");
	    }