if (document.images) {

		portfolioon=new Image 
        portfolioon.src="images/portfolio_on.gif"
        portfoliooff=new Image        
        portfoliooff.src="images/portfolio.gif"
        
        still_lifeon=new Image 
        still_lifeon.src="images/still_life_on.gif"
        still_lifeoff=new Image        
        still_lifeoff.src="images/still_life.gif"
        
        landscapeon=new Image 
        landscapeon.src="images/landscape_on.gif"
        landscapeoff=new Image        
        landscapeoff.src="images/landscape.gif"
        
        portraiton=new Image 
        portraiton.src="images/portrait_on.gif"
        portraitoff=new Image        
        portraitoff.src="images/portrait.gif"
        
        point_and_shooton=new Image 
        point_and_shooton.src="images/point_and_shoot_on.gif"
        point_and_shootoff=new Image        
        point_and_shootoff.src="images/point_and_shoot.gif"
        
        advertisingon=new Image 
        advertisingon.src="images/advertising_on.gif"
        advertisingoff=new Image        
        advertisingoff.src="images/advertising.gif"
                
        videoon=new Image 
        videoon.src="images/video_on.gif"
        videooff=new Image        
        videooff.src="images/video.gif"
        
        art_saleson=new Image 
        art_saleson.src="images/art_sales_on.gif"
        art_salesoff=new Image        
        art_salesoff.src="images/art_sales.gif"
        
        contacton=new Image 
        contacton.src="images/contact_on.gif"
        contactoff=new Image        
        contactoff.src="images/contact.gif"
        
        bioon=new Image 
        bioon.src="images/bio_on.gif"
        biooff=new Image        
        biooff.src="images/bio.gif"
        
        thumb1on=new Image 
        thumb1on.src="portfolio/images/thumbs/portfolio_thumb1.jpg"
        thumb1off=new Image        
        thumb1off.src="portfolio/images/thumbs/portfolio_thumb1_dull.jpg"

        thumb2on=new Image 
        thumb2on.src="portfolio/images/thumbs/portfolio_thumb2.jpg"
        thumb2off=new Image        
        thumb2off.src="portfolio/images/thumbs/portfolio_thumb2_dull.jpg"
		
        thumb3on=new Image 
        thumb3on.src="portfolio/images/thumbs/portfolio_thumb3.jpg"
        thumb3off=new Image        
        thumb3off.src="portfolio/images/thumbs/portfolio_thumb3_dull.jpg"
        
        thumb4on=new Image 
        thumb4on.src="portfolio/images/thumbs/portfolio_thumb4.jpg"
        thumb4off=new Image        
        thumb4off.src="portfolio/images/thumbs/portfolio_thumb4_dull.jpg"
        
        thumb5on=new Image 
        thumb5on.src="portfolio/images/thumbs/portfolio_thumb5.jpg"
        thumb5off=new Image        
        thumb5off.src="portfolio/images/thumbs/portfolio_thumb5_dull.jpg"
        
        thumb6on=new Image 
        thumb6on.src="portfolio/images/thumbs/portfolio_thumb6.jpg"
        thumb6off=new Image        
        thumb6off.src="portfolio/images/thumbs/portfolio_thumb6_dull.jpg"
        
        thumb7on=new Image 
        thumb7on.src="portfolio/images/thumbs/portfolio_thumb7.jpg"
        thumb7off=new Image        
        thumb7off.src="portfolio/images/thumbs/portfolio_thumb7_dull.jpg"
        
        thumb8on=new Image 
        thumb8on.src="portfolio/images/thumbs/portfolio_thumb8.jpg"
        thumb8off=new Image        
        thumb8off.src="portfolio/images/thumbs/portfolio_thumb8_dull.jpg"
        
        thumb9on=new Image 
        thumb9on.src="portfolio/images/thumbs/portfolio_thumb9.jpg"
        thumb9off=new Image        
        thumb9off.src="portfolio/images/thumbs/portfolio_thumb9_dull.jpg"
        
        thumb10on=new Image 
        thumb10on.src="portfolio/images/thumbs/portfolio_thumb10.jpg"
        thumb10off=new Image        
        thumb10off.src="portfolio/images/thumbs/portfolio_thumb10_dull.jpg"
        

}

function buttonOn (imgName) {
    if (document.images) {
    eval ("document [imgName].src = " + imgName + "on.src");
    }
}

function buttonOff (imgName) {
    if (document.images) {
    eval ("document [imgName].src = " + imgName + "off.src");
    }
	
	
}
// -->