function boxRotator(id, active) {

				var id=id+'DD';

				var lastActive = active;

				var repeatTime = 0;

				var DDCount = 0;

				var DDaCount = 0;

				var ts = -1;



				//szukanie zakladek DD

				var tag = document.getElementsByTagName('div');

				for (i=0;i<tag.length;i++) {

					if (tag[i].id.indexOf(id)==0) {

						DDCount++;

					}

				}

				//szukanie zakladek DDa

				tag = document.getElementsByTagName('a');

				for (i=0;i<tag.length;i++) {

					if (tag[i].id.indexOf(id+'a')==0) {

						DDaCount++;

					}

				}

				//if (DDCount!=DDaCount) alert("Bląd ilości div'ów i zakladek: "+DDCount+":"+DDaCount);



				this.click = function (n) {

					try {

						document.getElementById(id+lastActive).style.display='none';

						document.getElementById(id+n).style.display='';

						document.getElementById(id+'a'+lastActive).className='';

						document.getElementById(id+'a'+n).className='on';

						lastActive=n;

					} catch (err) {}

				

				}

				this.next = function () {

					if (lastActive==DDCount) this.click(1); else this.click(lastActive+1);

				}

				

				this.previous = function () {

					if (lastActive>1) this.click(lastActive-1); else this.click(DDCount);	

				}

				this.click(active);

			}