var lastY = null;
var currentY = null;

jqInboxItem.on("touchstart", function(event) {
    lastY = event.originalEvent.touches[0].pageY;
    currentY = event.originalEvent.touches[0].pageY;
});

jqInboxItem.on("touchmove", function(event) {
    currentY = event.originalEvent.touches[0].pageY;
    var adjustment = lastY-currentY;

    // only make an adjustment if cursor position changes vertically by more than 3 pixels
    if (Math.abs(lastY-currentY) > 3) {
        window.scrollBy(0,adjustment);
        lastY = currentY + adjustment;
    }

});