function openCurtain(domId, side, shift, interval){
		/*	
		var shift
		var l_shift
		var step
		var clip
		*/
		
		domPic = document.getElementById(domId);
		_w = domPic.offsetWidth
		
		if (shift<_w/6 || shift>_w*5/6)
			step = 4
		else if (shift<_w/3 || shift>_w*2/3)
			step = 5
		else
			step = 6
		
		
		shift += step
		
		
		switch (side) {
			case "R" :
				_clip = 'rect(auto ' + shift + 'px auto auto)'
			break
			
			case "L" :
				_clip = 'rect(auto auto auto ' + shift + 'px)'
			break
			
			case "LR" : 
				l_shift = (shift <= interval) ? 'auto' : (shift - interval) + 'px';
				_clip = 'rect(auto ' + shift + 'px auto ' + l_shift + ')'
			break				
		}
		
		domPic.style.clip = _clip	
			
		var _h = setTimeout('openCurtain("' + domId + '", "' + side + '", ' + shift + ',' + interval + ')', 15)
		
		if ((side == 'LR' && shift-interval>_w) || (side != 'LR' && shift > _w))
			clearTimeout(_h)
		
	}
	
	function startCurtain(){
		openCurtain('pic_blur', 'LR', 0, 90)
		openCurtain('pic', 'R', 0, 0)
		setTimeout("openCurtain('pic_blur_2', 'LR', 0, 30)", 1000);
	}