// move tab
	function yiaction(action,movenum,actionstop,objname){
		var objp = document.getElementById(objname);
		
			clearInterval(actionleft);
			clearInterval(actionright);

		if(actionstop<0){ return false; }
		if(actionstop==objp.scrollLeft){ return false; }
		if(objp.scrollWidth-actionstop<movenum){ return false; }
		
		switch(action){
			case 'left':
				var actionleft=setInterval(function (){left(objp,actionstop)},10);
				break;
			case 'right':
				var actionright=setInterval(function (){right(objp,actionstop)},10);
				break;
		}
		
		function left(objp,actionstop){
			objp.scrollLeft -= 16;
			if(objp.scrollLeft<=actionstop){
				clearInterval(actionleft);
			}
		}
		function right(objp,actionstop){
			objp.scrollLeft += 16;
			if(objp.scrollLeft>=actionstop){
				clearInterval(actionright);
			}
		}
	}