bName=navigator.appName;
bVer=parseInt( navigator.appVersion );

if (( bName == "Netscape" && bVer >= 3 ) || (bName == "Microsoft Internet Explorer" && bVer >=4)){
                ver="n3";
        }
        else {
                ver="xx";
        }

if ( ver=="n3" ) {
        downloadon=new Image();
        downloadon.src="images/ani-download.gif";
        downloadoff=new Image();
        downloadoff.src="images/header_downloads.gif";
        hardwareon=new Image();
        hardwareon.src="images/ani-hardware.gif";
        hardwareoff=new Image();
        hardwareoff.src="images/header_hardware.gif";
        kbaseon=new Image();
        kbaseon.src="images/ani-kbase.gif";
        kbaseoff=new Image();
        kbaseoff.src="images/header_kbase.gif";
        mboardon=new Image();
        mboardon.src="images/ani-mboard.gif";
        mboardoff=new Image();
        mboardoff.src="images/header_mboard.gif";
        newson=new Image();    
        newson.src="images/ani-news.gif";        
        newsoff=new Image();    
        newsoff.src="images/header_news.gif";
        searchon=new Image();    
        searchon.src="images/ani-search.gif";        
        searchoff=new Image();    
        searchoff.src="images/header_search.gif";
        softwareon=new Image();    
        softwareon.src="images/ani-software.gif";        
        softwareoff=new Image();    
        softwareoff.src="images/header_software.gif";
	minibutton1on=new Image();
	minibutton1on.src="images/mini_button_on.gif";
	minibutton1off=new Image();
	minibutton1off.src="images/mini_button_off.gif";
        minibutton2on=new Image();
        minibutton2on.src="images/mini_button_on.gif";
        minibutton2off=new Image();
        minibutton2off.src="images/mini_button_off.gif";
        minibutton3on=new Image();
        minibutton3on.src="images/mini_button_on.gif";
        minibutton3off=new Image();
        minibutton3off.src="images/mini_button_off.gif";
}

function rollon( imgName ) {
        if ( ver=="n3" ) {
                imgOn=eval( imgName + "on.src" );
                document[imgName].src=imgOn;
        }
}

function rolloff( imgName ) {
        if ( ver=="n3" ) {
                document[imgName].src=eval( imgName + "off.src" );
        }
}