function PlacementPlus(e) {
		PlacementShift(this, 1);
		
		return false;
	}
	
	function PlacementMinus(e) {
		PlacementShift(this, -1);
		
		return false;
	}
	
	function PlacementShift(obj, step, clearCache, requestStr) {
		var $papa = $(obj).parents('DIV.placement');
		if (requestStr == undefined) requestStr = '-';
		
		if ($papa.attr('loaded') != 'yes' || clearCache) {
			var dataSrc = $papa.attr('datasrc');
			$papa.attr('loaded_now', $papa.find('DIV.item').length);
			
			$papa.find('DIV.block').html('');
			
			$.get(dataSrc, {filter: requestStr}, function(data) {
				$papa.attr('loaded', 'yes');				
				$papa.find('DIV.block').html(data);
				$papa.attr('loaded_total', $papa.find('DIV.item').length);
				PlacementShift(obj, step);
			});
			
		} else {
			var loadedNow = parseInt($papa.attr('loaded_now'));
			
			//alert(loadedNow);
			
			var loadedTotal = parseInt($papa.attr('loaded_total'));
			
			//alert(loadedTotal);
			
			
			if(step == 0) {
				// если вгружаетяся аяксом, или сбрасывается кэш
				loadedNow = 3;
			} else {
				loadedNow += step;
			}
			
			if (loadedNow <= 1) {
				loadedNow = 1;
			} else {
				
			}
			
			if (loadedNow >= loadedTotal) {
				loadedNow = loadedTotal;
			} else {
			
			}
			
			$papa.attr('loaded_now', loadedNow);
			var cnt = 0; 
			$papa.find('DIV.item').each(function() {
				if (++cnt > loadedNow) {
					this.style.display = 'none';
				} else {
					this.style.display = 'block';
				}
			});
			
			$.cookie($papa.attr('datakey'), loadedNow, {expires: 365, path: '/'});
		}
	}
	
	$(document).ready(function() {
		$('DIV.placement')
			.find('A.plus').click(PlacementPlus).end()
			.find('A.minus').click(PlacementMinus).end()
	
	});
	
	
	function iFrameFileDownload(fileName) {
		$('#FileDownloadIframe').remove();
		$('body').append('<iframe id="FileDownloadIframe" src="/system/php/service.php?_module=filedownloaddl&_action=download&file_name='+ fileName +'" style="display:none; position: absolute; width: 1px; height: 1px;"></iframe>');
	}
	
	function openWindow(url, x, y) {
		window.open(url,'PrintPageWindow','width=' + x + ',height=' + y + ',toolbar=0,scrollbars=1,menubar=1');
	}