var headerPhotos = new Array() 

                                                      
			headerPhotos[0] = '/images/header_photos01.jpg'
			headerPhotos[1] = '/images/header_photos02.jpg'
			headerPhotos[2] = '/images/header_photos03.jpg'
			headerPhotos[3] = '/images/header_photos04.jpg'
			headerPhotos[4] = '/images/header_photos05.jpg'
			headerPhotos[5] = '/images/header_photos06.jpg'
			headerPhotos[6] = '/images/header_photos07.jpg'
			headerPhotos[7] = '/images/header_photos08.jpg'
			headerPhotos[8] = '/images/header_photos09.jpg'
			headerPhotos[9] = '/images/header_photos10.jpg'
			headerPhotos[10] = '/images/header_photos11.jpg'
			headerPhotos[11] = '/images/header_photos12.jpg'
			headerPhotos[12] = '/images/header_photos13.jpg'
			
									
			var j = 0
			var m = headerPhotos.length;
			var preBuffer = new Array()
			for (n = 0; n < m; n++){
			   preBuffer[n] = new Image()
			   preBuffer[n].src = headerPhotos[n]
			}
			var whichImage = Math.round(Math.random()*(m-1));