var theImages = new Array()


theImages[0]  = 'images/balt.jpg'
theImages[1]  = 'images/gavial.jpg'
theImages[2]  = 'images/hrozno.jpg'
theImages[3]  = 'images/hrusky.jpg'
theImages[4]  = 'images/jester.jpg'
theImages[5]  = 'images/Kap_arkona.jpg'
theImages[6]  = 'images/Kap_arkona1.jpg'
theImages[7]  = 'images/Kap_arkona2.jpg'
theImages[8]  = 'images/Kap_arkona3.jpg'
theImages[9]  = 'images/Kap_arkona4.jpg'
theImages[10]  = 'images/Kap_arkona5.jpg'
theImages[11]  = 'images/klasy.jpg'
theImages[12]  = 'images/lahvicky.jpg'
theImages[13]  = 'images/lampa.jpg'
theImages[14]  = 'images/ledni_medved.jpg'
theImages[15]  = 'images/lenin_stalin.jpg'
theImages[16]  = 'images/litomerice.jpg'
theImages[17]  = 'images/motyl.jpg'
theImages[18]  = 'images/papriky.jpg'
theImages[19]  = 'images/plaz1.jpg'
theImages[20]  = 'images/plaz2.jpg'
theImages[21]  = 'images/Recko_modre.jpg'
theImages[22]  = 'images/Recko1.jpg'
theImages[23]  = 'images/Recko2.jpg'
theImages[24]  = 'images/Recko3.jpg'
theImages[25]  = 'images/Recko4.jpg'
theImages[26]  = 'images/Recko5.jpg'
theImages[27]  = 'images/rybari.jpg'
theImages[28]  = 'images/sid.jpg'
theImages[29]  = 'images/sid1.jpg'
theImages[30]  = 'images/slunecnice.jpg'
theImages[31]  = 'images/stul.jpg'
theImages[32]  = 'images/surikata.jpg'
theImages[33]  = 'images/svatba.jpg'
theImages[34]  = 'images/tygr1.jpg'
theImages[35]  = 'images/tygr2.jpg'
theImages[36]  = 'images/uplnek.jpg'
theImages[37]  = 'images/zapad_slunce.jpg'


var count = theImages.length;
var whichImage = Math.round(Math.random() * (count - 1));


function showImage(){
   document.write('<img src="' + theImages[whichImage] + '">');
}