function tabstabs(tabNum, elemNum, mItemCounter) {
					var el01 = '';
					for (var i=1; i<=mItemCounter; i++) {
						if (document.getElementById('tab'+tabNum+i)) {document.getElementById('tab'+tabNum+i).style.display = (i!= elemNum)?'none':'block'}					
						el01 = document.getElementById('item'+tabNum+i);
						if (el01) {
							if (i!=elemNum) {
								el01.className=el01.className.replace(new RegExp("_act\\b"), "");						
							}  else {							
								if (el01.className.indexOf("_act")<0) {el01.className+='_act'}
							}
						}			
						
					}				
				}