//navbar Type="vert" uses-text="Y" face="Arial,Helvetica,sans-serif" size="1" color="000000" style="0"
function doRollover(elem, rollover_color, text_color){
    // set background color of TD
    if (elem.parentNode){ // IE5, IE6 and Netscape 6
        if (rollover_color == 'transparent'){   // Netscape does not like the word "transparent".
            elem.parentNode.bgColor = '';    
        }
        else{
            elem.parentNode.bgColor=rollover_color;
        }
    }
    else if (elem.parentElement && elem.parentElement.setAttribute){ // IE4.
        elem.parentElement.setAttribute("bgColor", rollover_color);
    }
    else{  // Netscape 4.6x or 4.7x
        //alert("Must be Netscape! do nothing");
    }
    // set color of the link text
    if (elem.children){  // IE4, IE5, IE6 and Netscape 6
        elem.children(0).style.color=text_color;
    }
}