function EditKeyCommand(evt)
{  
    var key = (evt.which || evt.charCode || evt.keyCode);  
    var stringKey = String.fromCharCode(key).toLowerCase();  
    var cmd = '';	  
    if (!evt || !evt.ctrlKey) 
    {   
        return true;    
    }
    switch (stringKey)  
    {    
        case 's':    
        {      
            if (evt.preventDefault) 
            {        
                evt.preventDefault();
                evt.stopPropagation();      
            } 
            else 
            {        
                evt.returnValue = false;        
                evt.cancelBubble = true;      
            }      
            if (window.SaveDocument)
            {
                SaveDocument();
            }
            else if ((window.parent != null) && window.parent.SaveDocument)
            {
                window.parent.SaveDocument();
            }
            return false;    
        }  
    };  
    return true;
}

if (document.addEventListener)
{  
    document.addEventListener("keypress", EditKeyCommand, true);
}
else if (document.attachEvent)
{  
    document.attachEvent("onkeydown", function(evt) { EditKeyCommand(evt) });
}