button1_a= new Image();
button1_a.src = "http://www.virgin-coconut-oil.de/gfx/home/059_startseite.png"
button1_b= new Image();
button1_b.src = "http://www.virgin-coconut-oil.de/gfx/home/059_startseite_mo.png"

button2_a= new Image();
button2_a.src = "http://www.virgin-coconut-oil.de/gfx/home/059_online_shop.png"
button2_b= new Image();
button2_b.src = "http://www.virgin-coconut-oil.de/gfx/home/059_startseite_mo.png"

button3_a= new Image();
button3_a.src = "http://www.virgin-coconut-oil.de/gfx/home/059_anwendung.png"
button3_b= new Image();
button3_b.src = "http://www.virgin-coconut-oil.de/gfx/home/059_anwendung_mo.png"

button4_a= new Image();
button4_a.src = "http://www.virgin-coconut-oil.de/gfx/home/059_hilfsprojekte.png"
button4_b= new Image();
button4_b.src = "http://www.virgin-coconut-oil.de/gfx/home/059_hilfsprojekte_mo.png"