var mouseMove = function (ev) {
			ev           = ev || window.event;
			var mousePos = mouseCoords(ev);
		}
		
		var mouseCoords = function (ev) {
			if(ev.pageX || ev.pageY){
				return {x:ev.pageX, y:ev.pageY};
			}
			return {
				x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
				y:ev.clientY + document.body.scrollTop  - document.body.clientTop
			};
		}

		var getMouseOffset = function(target, ev){
			ev = ev || window.event;
		
			var docPos    = getPosition(target);
			var mousePos  = mouseCoords(ev);
			return {x:mousePos.x - docPos.x, y:mousePos.y - docPos.y};
		}
		
		var getPosition = function(e){
			var left = 0;
			var top  = 0;
		
			while (e.offsetParent){
				left += e.offsetLeft;
				top  += e.offsetTop;
				e     = e.offsetParent;
			}
		
			left += e.offsetLeft;
			top  += e.offsetTop;
		
			return {x:left, y:top};
		}