NeiL

<script>  
    SimileAjax.DOM.getEventPageCoordinates = function(evt) ...{  
        if (SimileAjax.Platform.browser.isIE) ...{  
            if (document.compatMode == "CSS1Compat") ...{  
                return ...{  
                    x: evt.clientX + document.body.parentNode.scrollLeft,  
                    y: evt.clientY + document.body.parentNode.scrollTop  
                };  
            } else ...{  
                return ...{  
                    x: evt.clientX + document.body.scrollLeft,  
                    y: evt.clientY + document.body.scrollTop  
                };  
            }  
        } else ...{  
            return ...{  
                x: evt.pageX,  
                y: evt.pageY  
            };  
        }  
    };  
</script>

if (document.compatMode == \"BackCompat\") {
    cWidth = document.body.clientWidth;
    cHeight = document.body.clientHeight;
    sWidth = document.body.scrollWidth;
    sHeight = document.body.scrollHeight;
    sLeft = document.body.scrollLeft;
    sTop = document.body.scrollTop;
}
else ...{ //document.compatMode == \"CSS1Compat\"
    cWidth = document.documentElement.clientWidth;
    cHeight = document.documentElement.clientHeight;
    sWidth = document.documentElement.scrollWidth;
    sHeight = document.documentElement.scrollHeight;
    sLeft = document.documentElement.scrollLeft == 0 ? document.body.scrollLeft : document.documentElement.scrollLeft;
    sTop = document.documentElement.scrollTop == 0 ? document.body.scrollTop : document.documentElement.scrollTop;
}