function show_hover_box(imageid){var left_offset=87;var image=document.getElementById(imageid);var hover_box=document.getElementById('hover_box');hover_box.style.display="block";var image_coords=findPos(image);var new_hover_box_left=image_coords[0]+left_offset;hover_box.style.left=new_hover_box_left+'px';hover_box.style.top=image_coords[1]+'px'}function close_hover_box(){var hover_box=document.getElementById('hover_box');hover_box.style.display="none"}function findPos(obj){var curleft=curtop=0;if(obj.offsetParent){do{curleft+=obj.offsetLeft;curtop+=obj.offsetTop}while(obj=obj.offsetParent)}return[curleft,curtop]}