var pics = new Array ('fire-crew2008-9arrow.jpg','rougham063.jpg','dsc00370.jpg','rougham004.jpg','training007.jpg','rougham077.jpg','100_1139.jpg','100_1147.jpg','100_1156.jpg','100_1166.jpg','crw_4564_jfr.jpg','crw_4565_jfr.jpg','fire081.jpg','rougham003.jpg','rougham005.jpg','rougham050.jpg','rougham052.jpg','rougham053.jpg','rougham059.jpg','rougham060.jpg','rougham065.jpg','webpics003.jpg','webpics029.jpg','webpics031.jpg','webpics038.jpg','webpics039.jpg','webpics073.jpg','webpics074.jpg','webpics082.jpg','webpics083.jpg','webpics084.jpg','roughamairdisplay08355.jpg','roughamairdisplay08357.jpg','roughamairdisplay08358.jpg','roughamairdisplay08361.jpg','roughamairdisplay08365.jpg','roughamairdisplay08371.jpg','roughamairdisplay08362.jpg','img_0456.jpg','img_1492.jpg','img_1565.jpg','img_1508.jpg','img_1511.jpg','img_1512.jpg','img_1516.jpg','img_1523.jpg','002 [].jpg','010 [].jpg','011 [].jpg','012 [].jpg','019 [].jpg','020 [].jpg','038 [].jpg','041 [].jpg','044 [].jpg','4645_92040634733_546729733_1799717_6259681_n [].jpg','5116_221620855108_799835108_7377745_7615311_n [].jpg','6376_1202566228169_1349005366_589367_5169914_n [].jpg','6376_1202566348172_1349005366_589369_4037500_n [].jpg','7531_305670580234_557270234_9333210_5540715_n [].jpg','7531_305670590234_557270234_9333212_60059_n [].jpg','all sorts 027.jpg','all sorts 028 [].jpg','c1 [].jpg','c2 [].jpg','c3 [].jpg','c4 [].jpg','f1 [].jpg','j1 [].jpg','n699605430_6383895_218896 [].jpg','s1 [].jpg');


var picmax = pics.length;

var i_pic = 0;

function display_random_thumb(){
		picnum = Math.floor((Math.random() * picmax));
        document.writeln('<img src="images/s_' + pics[picnum] + '" style="border: 1px solid #909090" />');
        return;
}


function increment_picture(picname){
	i_pic = i_pic + 1;
	if (i_pic > (picmax -1)){
		i_pic = 0;
	}
	document[picname].src = 'images/' + pics[i_pic];
}