function openFormWindow() {
        crumbs = 'toolbar=no,location=no,directories=no,resizable=no,status=no,scrollbars=yes,menubar=no,width=550,height=600';
        window.open('/form/listing_form.asp?type=reloprop', 'form', crumbs);
      }

      function openMapWindow() {
        map = window.open('http://covia.mapmuse.com/re1/start_covia_re1.php', 'map', 'toolbar=no,location=no,directories=no,resizable=no,status=no,scrollbars=yes,menubar=no,width=658s,height=812');
				map.focus();
      }
			
      function newImage(arg) {
      	if (document.images) {
      		rslt = new Image();
      		rslt.src = arg;
      		return rslt;
      	}
      }
      
      function changeImages() {
  	  	if (document.images && (preloadFlag == true)) {
        		for (var i=0; i<changeImages.arguments.length; i+=2) {
        			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
  				}
      	}
    	}
      
			var preloadFlag = false;
      function preloadImages() {
      	if (document.images) {
      		menu_01_over = newImage("../images/menu_01-over.gif");
      		menu_02_over = newImage("../images/menu_02-over.gif");
      		menu_03_over = newImage("../images/menu_03-over.gif");
      		menu_04_over = newImage("../images/menu_04-over.gif");
      		menu_05_over = newImage("../images/menu_05-over.gif");
      		menu_06_over = newImage("../images/menu_06-over.gif");
      		menu_07_over = newImage("../images/menu_07-over.gif");
      		sub_menu_01_over = newImage("images/sub_menu_01-over.gif");
      		sub_menu_02_over = newImage("images/sub_menu_02-over.gif");
      		sub_menu_03_over = newImage("images/sub_menu_03-over.gif");
      		sub_menu_04_over = newImage("images/sub_menu_04-over.gif");
      		sub_menu_05_over = newImage("images/sub_menu_05-over.gif");
      		sub_menu_06_over = newImage("images/sub_menu_06-over.gif");

					preloadFlag = true;
				}
      }