js table display

我有这段代码：var newTB=document.createElement('table');
                    newTB.style.backgroundColor="#d3d3d3";
                    newTB.style.position="absolute";
                    newTB.style.left=window.event.clientX;
                    newTB.style.top=window.event.clientY;
                    document.body.appendChild(newTB);
                    var newRow=newTB.insertRow();
                    var newCell=newRow.insertCell();
                    newCell.innerHTML="<a href=''>查看</a>
那当我把鼠标移开后或者说鼠标点击其他地方后，这个表格消失，就是他的display:none,怎么写？请各位帮忙谢谢