Add bookmarks to ArcIMS Websites and Extents using HTML viewer

Summary

This article describes how to add bookmark functionality to an ArcIMS website. This functionality will allow users to bookmark the whole ArcIMS website or a particular extent, which respects the visible layers and active layer settings of that extent.The procedure shows how to implement example bookmark code in a 'vanilla' or out of the box HTML viewer.

Note:
Though the included sample code can be implemented in all browsers, the functionality will only work with Internet Explorer. For all the other browsers, the bookmark option is not shown.

Procedure

1. Open file top.htm in any text editor. Location of top.htm is directly under <website> directory.
2. Find the following lines of code at the bottom of the file:
   
   

   Code:
   <SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
   document.writeln(theTitle);
   </SCRIPT>
   </B></FONT>
   
   </BODY>
   </HTML>

   
   Add these lines before the </BODY> tag.
   
   

   Code:
   <SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
    if (window.external) {  // Check for browser - IE only
     document.writeln('<span onclick="javascript:bookmarkExtent();" style="cursor:pointer;">[ Bookmark Extent ]</span>');
     document.writeln('<span onclick="javascript:bookmarkSite();" style="cursor:pointer;"> [ Bookmark Site ]</span>');
    }
   </SCRIPT>

   
   
3. In the same file, find the following lines of code:
   
   

   Code:
   function showInfo() {
    if (parent.TextFrame!=null) {     
       parent.TextFrame.document.location="arcimsInfo.htm";
    } else {
     var Win1 = open("arcimsInfo.htm","InfoWindow","width=575,height=150,scrollbars=yes,resizable=yes");
    }
   }
   
     </SCRIPT>
   </HEAD>

   
   Add the following line before the </SCRIPT> tag:
   
   

   Code:
   function bookmarkExtent() {
   			var t=parent.MapFrame;
   			var bmExtent = "?box="+t.eLeft+":" + t.eBottom + ":" + t.eRight + ":" + t.eTop;
   			var bmLayers = "&Layers=" + getLayersVisibilityStatus();
   			var bmActiveLayer = "&ActiveLayer=" + t.ActiveLayerIndex;
   
   			//Change the site to reflect your website entry page
   			var site = "http://nandi/website/test/default.htm";
   			
   			// Change the title if needed
   			var title = "NorthAmerica Saved Extents";
   			
   			if (window.external)  // IE
   				window.external.AddFavorite(site+bmExtent+bmLayers+bmActiveLayer,title);			
   	}
   
   function bookmarkSite() {
   
   			// Change the title if needed
   			var title = "NorthAmerica - ArcIMS Map Service";
   
   			// Change the site to reflect your webite
   			var site = "http://nandi/website/test/default.htm";
   
   			if (window.external)  // IE
   				window.external.AddFavorite(site, title);
   	}
   
   function getLayersVisibilityStatus() {
   			var t=parent.MapFrame;
   			var visibleLayers = "";
   			for (var i=0;i<t.layerCount;i++) {
   				if (t.LayerVisible[i]==1)
   					visibleLayers += "1";
   				else
   					visibleLayers += "0";
   			}
   			return visibleLayers;
   		}

   
   
4. Once the new code is added, find variable called 'site' in the functions bookmarkSite and bookmarkExtent:
   
   

   Code:
   //Change the site to reflect your website
   var site = "http://nandi/website/test/default.htm";

   
   Make the changes so that it points to the current website.