$("table#demo1").tableselect(function(api){
		$('#mergeCells').on('click',function(){
			var range = api.getSelectedRange();
			if(range){
				api.mergeCells(range,function($item){
					$item.removeClass('selected');
				});
			}
		});
		$('#splitCells').on('click',function(){
			var range = api.getSelectedRange();
			if(range){
				api.splitCells(range,function($item){
					$item.removeClass('selected');
				});
			}
		});
	});

	$("table#demo2").tableselect({
		'onSelecting':function(range){
			var limit_count = 2;
			var index = Math.ceil(range['from'][0]/limit_count);
			if(range['from'][0]<=range['to'][0]){
				range['to'][0] = Math.min(range['to'][0],index*limit_count);
			}else{
				range['to'][0] = Math.max(range['to'][0],index*limit_count-1);
			}
			return range;
		}
	});