<scRIPT>
function move()
{
 if(document.body.offsetWidth < suldo.offsetWidth + event.x + 6 + 16 + 10)
 {
  suldo.style.left = document.body.scrollLeft + document.body.offsetWidth - suldo.offsetWidth - 6 - 16;
 }
 else
 {
  suldo.style.left = document.body.scrollLeft + 10 + event.x;
 }
 
 if(document.body.offsetHeight < suldo.offsetHeight + event.y + 6 + 10)
 {
  suldo.style.top = document.body.scrollTop + document.body.offsetHeight - suldo.offsetHeight - 6;
 }
 else
 {
   suldo.style.top = document.body.scrollTop + 10 + event.y;
 }
}
window.document.onmousemove = move;
</scRIPT>

<div id="suldo" style="position:absolute; width:200px; height:100;
border: 1px solid #000000; background-color: #2080ff;">
  어떠세요..?ㅎㅎㅎ응용하세요...</div>