var helpWindow = null;
var helpWindowClosed=false;   

function OpenHelpWindow(helpIndex)
{
	if (helpWindow != null)
	{
		if (!helpWindow.closed)
		{
			helpWindow.close(); 
			while (helpWindowClosed != helpWindow.closed)
			{
				helpWindowClosed = helpWindow.closed;
			}     
		}
	}       
	helpWindow=window.open("help/"+helpIndex+".html","_blank","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=600,height=400");   
}