function slideBlock(blockNumber, slideWay)
{
	switch(slideWay)
	{
		case 'right':
			if(blockNumber == totalStories)
			{
				$('.slider').animate({
						marginLeft:'0px'
					}, 500);
				blockNumber = 1;
				document.getElementById('next_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ blockNumber +', \'right\')"><img src="img/arrow_right.png" alt="" /></a>';
				document.getElementById('prev_block').innerHTML = '';
			}
			else
			{
				$('#block'+blockNumber).animate({
						marginLeft:'-300px'
					}, 500);

				nextBlock = blockNumber + 1;
				prevBlock = totalStories - 1
				if(blockNumber == prevBlock)
					document.getElementById('next_block').innerHTML = '';
				else
					document.getElementById('next_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ nextBlock +', \'right\')"><img src="img/arrow_right.png" alt="" /></a>';
				document.getElementById('prev_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ blockNumber +', \'left\')"><img src="img/arrow_left.png" alt="" /></a>';
			}
			break;
		case 'left':
			if(blockNumber == 1)
			{
				$('#block'+blockNumber).animate({
						marginLeft:'0px'
					}, 500);
				document.getElementById('next_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ blockNumber +', \'right\')"><img src="img/arrow_right.png" alt="" /></a>';
				document.getElementById('prev_block').innerHTML = '';
			}
			else
			{
				$('#block'+blockNumber).animate({
						marginLeft:'0px'
					}, 500);

				prevBlock = blockNumber - 1;
				document.getElementById('next_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ blockNumber +', \'right\')"><img src="img/arrow_right.png" alt="" /></a>';
				document.getElementById('prev_block').innerHTML = '<a href="javascript:;" onclick="javascript:slideBlock('+ prevBlock +', \'left\')"><img src="img/arrow_left.png" alt="" /></a>';
			}
			break;
	}
}