function in_array (needle, haystack) {
		    var key = '';
		 
	        for (key in haystack) {
	            if (haystack[key] == needle) {
	                return true;
	            }
	        }
		 
		    return false;
		}
	
		function ShowSpecials (total_divs, divs_to_show) {
			var num_bank = new Array();
			var i = 0;
			while (i < divs_to_show) {
				random_num = Math.floor(Math.random() * total_divs)
	
				if (!in_array (random_num, num_bank)) {
					document.getElementById('spc' + random_num).style.display = 'inline';
					num_bank[i] = random_num;
					i++;
				}		
			}
		}