draging = true;

}

//拖拽中

function OnDrag()

{

    if(!draging)

    {

        return;

    }

    //更新位置

    event.returnValue = false;

    cloneLayer.style.pixelLeft = document.body.scrollLeft + event.clientX - offsetX;

    cloneLayer.style.pixelTop = document.body.scrollTop + event.clientY - offsetY;

}

//结束拖拽

function EndDrag()

{

    if (event.button != 1)

    {

        return;

    }

    draging = false;

    if (event.clientX >= aim.style.pixelLeft && event.clientX <= (aim.style.pixelLeft + aim.offsetWidth) &&

        event.clientY >= aim.style.pixelTop && event.clientY <= (aim.style.pixelTop + aim.offsetHeight))

    {

        //拖拽层位于目标中，自动定位到目标位置

        sourceLayer.style.pixelLeft = aim.style.pixelLeft;

        sourceLayer.style.pixelTop = aim.style.pixelTop;

         cloneLayer.className = "docked";

         /*

   &n

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