var FlashInject = {	
	objCounter: 0,
		
	/* go thru the document and REWRITE it:
	 *
	 * 1. wrap each object with an ID'ed span, 
	 * 2. parse & remove cntents of span, 
	 * 3. inject new/dynamically generated object tags  
	 */
	runCalled: false,		
	run: function() {
        if (FlashInject.runCalled) {
            return;
        } else {
            FlashInject.runCalled = true;
        }
        
	    parsedObjs = [];
	    
	    // determine that we have the necessary functionality
	    if ((typeof UFO == 'undefined') || !UFO.is_w3cdom) return;
	    
	    // find all the dom elements with tagName 'OBJECT'
        objs = document.getElementsByTagName('OBJECT');        
        if (!objs || !objs.length) {              	      
            return;
        } 
        
        for (var i = 0; i < objs.length; i++) {
            // determine whether this is a flash object 
            // codebase: 'swflash.cab'
            codeBase = objs[i].getAttribute('codebase'); if (!codeBase) { codeBase = objs[i]['codebase']; }	        
            if (!codeBase || (codeBase.indexOf('swflash.cab') === false)) {      
                continue;
            }            
        
            // try to parse out the ness. info from the dom <OBJECT> element\
            // and add it to our stack if we succeed.
            if (o = FlashInject.parseObj( objs[i] )) {                 
                parsedObjs[parsedObjs.length] = {'newobj':o, 'oldobj':objs[i]};
            }                
        }
        
        // go through our parsed data, inject a usable (with id attribute) wrapper element,
        // remove the original element and call the creation routine with the required info
        for (var i = 0; i < parsedObjs.length; i++) {            
            // inject the span
            span    = document.createElement('SPAN');
            span.id = parsedObjs[i]['newobj']['id'];
            
            parsedObjs[i]['oldobj'].parentNode.insertBefore(span, parsedObjs[i]['oldobj']);
            
            // hide the original element          
            if (styleObj = FlashInject.getStyleObj( parsedObjs[i]['oldobj'] )) {
                styleObj.visibility = 'hidden';
                styleObj.display    = 'none';                
            }
                        
            // create a new OBJECT element
            if (UFO.create(parsedObjs[i]['newobj']['obj'], parsedObjs[i]['newobj']['id']) ) {
                // remove the old element from the DOM.                
                parsedObjs[i]['oldobj'].parentNode.removeChild( parsedObjs[i]['oldobj'] );
            } else if (styleObj) {
                // show the orginal element again if the insert of the new element failed
                styleObj.visibility = 'visible';
                styleObj.display    = '';            
            }
        }
	},	
	
	parseObj: function(domEl)  {
	
        // try to determine the required major and minor [SW Flash] version of the flash movie	    
	    codeBase = domEl.getAttribute('codebase'); if (!codeBase) { codeBase = domEl['codebase']; }
	    if (!codeBase) {
            return; 
	    } else {	        	        
	        vArr   = codeBase.replace(/^.*=/, '').split(",");
            if (!vArr.length) {                  
                return;
            } 
	    }
	    
	    majorV = parseInt(vArr[0]);
	    minorV = parseInt(vArr[2]);
		     	     		
        // to to parse out a number of OJBECT tag PARAM children - some required, some optional
        if (!domEl.childNodes.length) {            
            return;
	    } else {	        
            for (var i = 0; i < domEl.childNodes.length; i++) {                                
                if (domEl.childNodes[i].tagName != 'PARAM') {
                    continue;
                }
                name = domEl.childNodes[i].getAttribute('name');  if (!name) { name = domEl.childNodes[i]['name'];  }
                val  = domEl.childNodes[i].getAttribute('value'); if (!val)  { val  = domEl.childNodes[i]['value']; }
                
                if (name = name.toLowerCase()) {                                        
                    switch (name) {
                        case 'movie':
                            url     = val;
                            break;
                        case 'quality':
                            quality = val;
                            break;
                        case 'wmode':
                            wmode   = val;
                            break;           
                        case 'allowScriptAccess':
                            asa     = val;
                            break;                                                                            
                        case 'menu':
                            menu    = val;
                            break;                                                        
                        case 'scale':
                            scale   = val;
                            break;                                                  
                        case 'bgcolor':
                            bgcol   = val;
                            break;                            
                                                        
                    }
                }                
            }
	    }
	     
	    // try to determine the required width and height info.
	    width  = domEl.getAttribute('width');  if (!width)  { width  = domEl['width'];  }
	    height = domEl.getAttribute('height'); if (!height) { height = domEl['height']; }	    
	    			    
	    // check we have the required information
	    if (((typeof url == 'undefined') || !url) || !width || !height || (typeof majorV != 'number') || (typeof minorV != 'number')) { 
	        return false; 
	    }     
	    
	    // create the object with the required info.
        thenewobj = {'movie': url, 'width': width, 'height': height, 'majorversion': majorV, 'build': minorV};
        
        // add some optional information/params - if they exist.
        if (((typeof wmode   != 'undefined') && wmode))   thenewobj['wmode']                = wmode;
        if (((typeof quality != 'undefined') && quality)) thenewobj['quality']              = quality;
        if (((typeof sas     != 'undefined') && asa))     thenewobj['allowScriptAccess']    = asa;
        if (((typeof menu    != 'undefined') && menu))    thenewobj['menu']                 = menu;
        if (((typeof scale   != 'undefined') && scale))   thenewobj['scale']                = scale;
        if (((typeof bgcol   != 'undefined') && bgcol))   thenewobj['bgcolor']              = bgcol;
        
        // crank up the count of the objects we have successfully parsed - this allows us to generate an id attribute
        // in the caller function.
        FlashInject.objCounter++;
        
        // return the data required to inject a flash object.
	    return {   
	               'id':  'flashWrapper'+FlashInject.objCounter, 
	               'obj': thenewobj
	           };
	},
	
	// cross-browser function to get an object's style object given its id
    getStyleObj: function(object) {        
        if(document.getElementById) {
            // W3C DOM
            return object.style;
        } else if (document.all) {
            // MSIE 4 DOM
            return object.style;
        } else if (document.layers) {
        	// NN 4 DOM.. note: this won't find nested layers
        	return object;
        } else {
    	   return false;
        }
    }
}

var FlashInjectAEOL = [];   
if (typeof addEvent == 'undefined') {    
    function addEvent(o, n, f, l)
    {
        var a = 'addEventListener', h = 'on'+n, b = '', s = '';
        if (o[a] && !l) 
            return o[a](n, f, false);
        
        o._c |= 0;
        if (o[h]) {
            b = '_f' + o._c++; o[b] = o[h];
        }
     
        s = '_f' + o._c++;
        o[s] = f;
        o[h] = function(e) {
            e = e || window.event;
            var r = true;
            if (b) r = o[b](e) != false && r;
            r = o[s](e) != false && r;
            return r;
        };
        
        FlashInjectAEOL[FlashInjectAEOL.length] = { o: o, h: h };
    };
    addEvent(window, 'unload', function() { for (var i = 0; i < FlashInjectAEOL.length; i++) with (FlashInjectAEOL[i]) { o[h] = null; for(var c = 0; o['_f' + c]; c++) o['_f' + c] = null; } } );
}

// add an onload event to automatically replace any flash element in the page 
// with javascript generated ones - thanks to Eidos and M$ for the need to do this.
addEvent( window, 'load', function(){FlashInject.run();} );