var _image = new Image();

    function ImageOver( id, url){
        
        _image.id = id;
        _image.src = document.getElementById(id).src;        
        
        ImageMenu( id, url);
        
    }
    
    function ImageRestore(){
        
        ImageMenu( _image.id, _image.src);
        
    }

    function ImageMenu( id, url){
        
        var menu;

        menu = document.getElementById(id);

        if( menu){

            menu.src = url;
            
            AlphaPNG( menu, url);
        
        }
        
    }

    function AlphaPNG( image, url){

        var name, mime;

        if( navigator.appVersion.indexOf('MSIE 6.0') >= 0 || navigator.appVersion.indexOf('MSIE 5.5') >= 0){
            
            name = image.src;
            mime = name.substring( name.length - 3, name.length).toUpperCase();
            
            if( mime == 'PNG'){
                
                image.src = '/images/dot.gif';
                image.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader( src=' + name + ', sizingMethod=scale)';
                
            } 
            
        }
        
    }

    function InitialAlphaPNG(){
    
        var i;
        var image;
        var name, mime;
    
        if( navigator.appVersion.indexOf('MSIE 6.0') >= 0 || navigator.appVersion.indexOf('MSIE 5.5') >= 0){
            
            if( document.images.length > 0){
                
                for( i = 0; i < document.images.length; i ++){
                    
                    image = document.images[i];
                    
                    name = image.src;
                    mime = name.substring( name.length - 3, name.length).toUpperCase();
                    
                    if( mime == 'PNG'){
                        
                        image.src = '/images/dot.gif';
                        image.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader( src=' + name + ', sizingMethod=scale)';
                        
                    } 
                    
                }                
                
            }           
            
        }
        
    }

    window.attachEvent( 'onload', InitialAlphaPNG);