var gallery = new Array();
gallery[0] = new Array('random_01.jpg','random_02.jpg','random_03.jpg','random_04.jpg','random_05.jpg','random_06.jpg','random_07.jpg','random_08.jpg');
gallery[1] = new Array('random_09.jpg','random_10.jpg','random_11.jpg','random_12.jpg','random_13.jpg','random_14.jpg','random_15.jpg','random_16.jpg');
gallery[2] = new Array('random_17.jpg','random_18.jpg','random_19.jpg','random_20.jpg','random_21.jpg','random_22.jpg','random_23.jpg','random_24.jpg');
gallery[3] = new Array('random_25.jpg','random_26.jpg','random_27.jpg','random_28.jpg','random_29.jpg','random_30.jpg','random_31.jpg','random_32.jpg');
function pickImageFrom(whichGallery)
{
var idx = Math.floor(Math.random() * gallery[whichGallery].length);
document.write('<img src="galleries/random/' + gallery[whichGallery][idx] + '">');
}