<script language="javascript" type="text/javascript">

// Global variables.
var numSeconds;
var timerId = null;
var timerInterval = 1000;
var numUpdates = 0;

// Handle OnLoad event.
window.onload = Window_OnLoad;

function Window_OnLoad()
{      
    StartProcess();
}

// Starts the process for updating the Map.
function StartProcess()
{
    // 200 x 3 seconds = 600 seconds = 10 minutes demo.
    if ( numUpdates < 72 )
    {
        // Duration between actual updates to the map in seconds.
        numSeconds = 3;
        UpdateMap();
        numUpdates++;
    }
}
                   
// Continues the process of updating the Map.
function UpdateMap()
{               
    if ( numSeconds == 0 )
    {
        // Clears the timer.
        clearTimeout(timerId);
        
        // Update the Map control.
        var mapControl = document.getElementById("MapControl1");
        mapControl.doCallback("IncrementSales", "");
    
        // Restart the process.
        StartProcess();
    }
    else
    {
        // Decrease the value for seconds.
        numSeconds = numSeconds - 1;
        
        // Continue the delayed process.
        timerId = self.setTimeout("UpdateMap()", timerInterval);
    }
}
</script>