How to create S-Control in Salesforce ?

To demonstrate this, lets consider an example of Google
Map.

Lets create a S-Control for the Google Map.

Now let’s first create a new S-Control:
Click
     on “Setup” which is located on the top right corner of the force.com page.
Expand
     “Develop” item and click on “S-Controls”
Hit
     “New Custom S-Control”
Provide
     a Label “Google Map” and a description is you wished to
The
     Type should be HTML since we want to create a HTML, Google API mash up
Now it
     is time to enter the code for the S-Control





 
  




1-<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
2-<head>
3-<meta http-equiv="content-type" content="text/html; charset=utf-8" />
4-<title>Google Maps JavaScript API Example: Advanced Directions</title>
5<link href="/dCSS/Theme2/default/common.css" type="text/css" 
    media="handheld,print,projection,screen,tty,tv"
6-rel="stylesheet">
7-<link href="/dCSS/Theme2/default/custom.css" type="text/css" 
     media="handheld,print,projection,screen,tty,tv"
8-rel="stylesheet">
9-<script src=" http://maps.google.com/?file=api&amp;v=2.x&amp;key={YOUR KEY}"
10type="text/javascript"></script>
11-<script src="/js/functions.js" type="text/javascript"></script>
12-<script type="text/javascript" src="/soap/ajax/13.0/connection.js"></script>
13-<style type="text/css">

14-body {
15-font-family: Verdana, Arial, sans serif;
16-font-size: 11px;
17-margin: 2px;
18-}
19-table.directions th {
20-background-color:#EEEEEE;
21-}
22-img {
23-color: #000000;
24-}
25-</style>
26-<script type="text/javascript">
27-var map;
28-var gdir;
29-var geocoder = null;
30-var addressMarker;
31-var dirFrom = '{!$Request.from}';
32-var dirTo = '{!$Request.to}';
33-var mapLocale = ""
34-var SControlID = '{!$Request.lid}';
35-var SFrameIC = '{!$Request.ic}';
36-function initValues()
37-{
38-mapLocale = "en_US";
39-setInputFields(dirFrom,dirTo);
40-}
41-function setInputFields(from, to)
42-{
43-window.document.getElementById("fromAddress").value = from;
44-window.document.getElementById("toAddress").value = to;
45-}
46-function initialize()
47-{
48-initValues();
49-if (GBrowserIsCompatible()) {
50-map = new GMap2(document.getElementById("map_canvas"));
51-map.addControl(new GSmallMapControl());
52-map.addControl(new GMapTypeControl());
52-gdir = new GDirections(map, document.getElementById("directions"));
53-GEvent.addListener(gdir, "load", onGDirectionsLoad);
54-GEvent.addListener(gdir, "error", handleErrors);
55-setDirections(dirFrom, dirTo, mapLocale);
56-}
57-}
58-function setDirections(fromAddress, toAddress, locale) {
59-if ((fromAddress) && (toAddress))
60-gdir.load("from: " + fromAddress + " to: " + toAddress,
61-{ "locale": locale });
62-}
63-function handleErrors()
64-{
65-if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
66-alert("No corresponding geographic location could be found for one of the specified
   addresses. This may be due to the fact that the address is relatively new, or it may be 
   incorrect.nError code: " + gdir.getStatus().code);
67-else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
68-alert("A geocoding or directions request could not be successfully processed, yet the 
   exact reason for the failure is not known.n Error code: " + gdir.getStatus().code);
69-else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
70-alert("The HTTP q parameter was either missing or had no value. For geocoder requests, 
   this means that an empty address was specified as input. For directions requests, this means 
   that no query was specified in the input.n Error code: " + gdir.getStatus().code);

71-// else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS) <--- Doc bug... this is either 
   not defined, or Doc is wrong
72-// alert("The geocode for the given address or the route for the given directions query cannot
   be returned due to legal or contractual reasons.n Error code: " + gdir.getStatus().code);
73-else if (gdir.getStatus().code == G_GEO_BAD_KEY)
74-alert("The given key is either invalid or does not match the domain for which it was given. n Error 
75-code: " + gdir.getStatus().code);
76-else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
77-alert("A directions request could not be successfully parsed.n Error code: " + gdir.getStatus().code);
78-else alert("An unknown error occurred.");
79-}
80-function onGDirectionsLoad(){
81-// Use this function to access information about the latest load()
82-// results.
83-// e.g.
84-// document.getElementById("getStatus").innerHTML = gdir.getStatus().code;
85-// and yada yada yada...
86-}
87-</script>
88-</head>
89-<body onload="initialize()" onunload="GUnload()">
90-<div style="background-color: #CCCCCC">
91-<form action="#" onsubmit="setDirections(this.from.value, this.to.value, this.locale.value); return false">
92-<table>
93-<tr>
94-<th align="right">
95-From:&nbsp;</th>
96-<td>
97-<input type="text" size="25" id="fromAddress" name="from" value="" /></td>
98-<th align="right">
99-&nbsp;&nbsp;To:&nbsp;</th>
100-<td align="right">
101-<input type="text" size="25" id="toAddress" name="to" value="" /></td>
102-<th align="right">
103-Language:&nbsp;</th>
104-<th align="right">
105-<select id="locale" name="locale">
106-<option value="en" selected="selected">English</option>
107<option value="fr">French</option>
108-<option value="de">German</option>
109-<option value="ja">Japanese</option>
110-<option value="es">Spanish</option>
111-</select>
112-</th>
113-<td>
114-<input name="submit" type="submit" value="Get Directions!" /></td>
115-</tr>
116-</table>
117-</form>
118-</div>
119-<div style="border-width: 1px; border-color: #000000; border-style: solid;">
120-<div style="overflow: auto; width: 99.5%; height: 380px">
121-<table class="directions" style="width: 100%; height: 100%">
122-<tr>
123-<td valign="top" style="width: 275px;">
124-<div id="directions" style="width: 275px; background-color: #ffffff;">
125-</div>
126-</td>
127-<td valign="top">
128-<div id="map_canvas" style="width: 100%; height: 375px; background-color: #ffffff;">
129-</div>
130</td>
131-</tr>
132-</table>
133-</div>
134-</div>
135-</body>
136</html>





For  Hosting S-Control in Visualforce Page for google map click here
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