var imo_interval = null;
    function imo(n)
    {
    		var imoel;
        if(imo_interval) {
            clearInterval(imo_interval);
            imo_interval = null;
        }
        
        if(n != 0) 
            imo_interval = setInterval(function() {
                imoel = document.getElementById('imgmove');
                if(parseInt(imoel.style.left) + n <= 0 &&
                   parseInt(imoel.style.left) + n >= -(imoel.lastChild.offsetLeft + imoel.lastChild.offsetWidth - 210))
                    imoel.style.left = (parseInt(imoel.style.left) + n) + 'px';
            }, 20);
    }