function checkAndSetAds (banner_wrapper_id,checked_banner_id_array,banner_anzeige_id)
{
	var adwidth = 0;
	var adtext = true;	

	checked_banner_id_array.each(
	
	function(nav_ad)
    {   
        if($(nav_ad))
        {
            $(nav_ad).getChildren().filter(
            	function(el)
            	{           	 
               	return (el.getTag() != 'script');
            	}).each(function(my_element)
            {
            
				adwidth = Math.max( adwidth, my_element.offsetWidth);

					
					if(my_element.nodeName.toLowerCase() == 'span')
					{
						adtext = false;				
					} 

					
            });    
            
        }
    });

	if(!($(banner_wrapper_id)))
	{
		return false;
	}

	//alert(banner_wrapper_id + ' ... ' + adwidth);

	if ( adwidth < 10 )
    {
    	$(banner_wrapper_id).setStyle('display', 'none');
    }
   else if ( adtext==true )
    {
      $(banner_anzeige_id).setStyle('display', 'block');
    }
    
    return true;
}

function checkBanner()
{
	
	
	window.addEvent('load', function ()
	{
	    //navigation ADs
		var checked_banner_id_array = [];
		var banner_wrapper = '';
	    
	    checked_banner_id_array =  ['ad_banner_superbanner'];
	    banner_wrapper = 'ad_wrapper_superbanner';
	    banner_anzeige_id = 'anzeige_superbanner';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);
	    
	    checked_banner_id_array =  ['ad_banner_skyscraper'];
	    banner_wrapper = 'ad_wrapper_skyscraper';
	    banner_anzeige_id = 'anzeige_skyscraper';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);	    
	    
	    checked_banner_id_array =  ['ad_banner_rectangle'];
	    banner_wrapper = 'ad_wrapper_rectangle';
	    banner_anzeige_id = 'anzeige_rectangle';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);	
	    
	    checked_banner_id_array =  ['ad_banner_popup_skyscraper'];
	    banner_wrapper = 'ad_wrapper_popup_skyscraper';
	    banner_anzeige_id = 'anzeige_popup_skyscraper';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);		
	    
	    checked_banner_id_array =  ['ad_banner_popup_oben'];
	    banner_wrapper = 'ad_wrapper_popup_oben';
	    banner_anzeige_id = 'anzeige_popup_oben';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);		        
	    
	    checked_banner_id_array =  ['ad_banner_stumme_zeugen'];
	    banner_wrapper = 'ad_wrapper_stumme_zeugen';
	    banner_anzeige_id = 'anzeige_stumme_zeugen';
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);		    	    
	    
	    /* 
		 checked_banner_id_array =  ['ad_wrapper2'];
	    banner_wrapper = 'marginalunten_banner_wrapper';
	    banner_anzeige_id = 'anzeige_ad_wrapper2'; 
	    checkAndSetAds(banner_wrapper,checked_banner_id_array,banner_anzeige_id);
	    */

	});
}