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if (document.images) {
            homeon = new Image();          
            homeon.src ="graphics/navigation/home_on.jpg";  
						            dayschoolson = new Image();          
            dayschoolson.src ="graphics/navigation/dayschools_on.jpg"; 
												            commentson = new Image();          
            commentson.src ="graphics/navigation/comments_on.jpg"; 
            artinactionon = new Image();          
            artinactionon.src ="graphics/navigation/artinaction_on.jpg";   	
            contacton = new Image();          
            contacton.src ="graphics/navigation/contact_on.jpg";   						
					philosophyon = new Image();          
            philosophyon.src ="graphics/navigation/philosophy_on.jpg";  		
					term_dateson = new Image();          
            term_dateson.src ="graphics/navigation/term_dates_on.jpg"; 
					eventson = new Image();          
            eventson.src ="graphics/navigation/events_on.jpg"; 
            parentingon = new Image();          
            parentingon.src ="graphics/navigation/parenting_on.jpg";
						historyon = new Image();          
            historyon.src ="graphics/navigation/history_on.jpg";    
            economicson = new Image();
            economicson.src ="graphics/navigation/economics_on.jpg";

            tasterson = new Image();
            tasterson.src ="graphics/navigation/tasters_on.jpg";

            homeoff = new Image();
            homeoff.src ="graphics/navigation/home_off.jpg";

            economicsoff = new Image();
            economicsoff.src ="graphics/navigation/economics_off.jpg";

            tastersoff = new Image();
            tastersoff.src ="graphics/navigation/tasters_off.jpg";

            artinactionoff = new Image();
            artinactionoff.src ="graphics/navigation/artinaction_off.jpg";
												            dayschoolsoff = new Image();
            dayschoolsoff.src ="graphics/navigation/dayschools_off.jpg";
																		                                                             commentsoff = new Image();
            commentsoff.src ="graphics/navigation/comments_off.jpg";
						contactoff = new Image();          
            contactoff.src ="graphics/navigation/contact_off.jpg"; 
					philosophyoff = new Image();          
            philosophyoff.src ="graphics/navigation/philosophy_off.jpg";  		
					term_datesoff = new Image();          
            term_datesoff.src ="graphics/navigation/term_dates_off.jpg"; 
					eventsoff = new Image();          
            eventsoff.src ="graphics/navigation/events_off.jpg"; 
            parentingoff = new Image();          
            parentingoff.src ="graphics/navigation/parenting_off.jpg";
						historyoff = new Image();          
            historyoff.src ="graphics/navigation/history_off.jpg";           
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// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
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        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
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}
// -->