//script for logo rollover       
        if (document.images) 

        {
		img1nb = new Image();
        	img1nb.src = "../pics_front/az_title_bluenav2.gif";
               
 	      	img2nb = new Image();
        	img2nb.src = "../pics_front/az_title_bluenav.gif";
          
        	
        }
              
function img_nbOn(imgName)
{
        if (document.images)       
        {
        document["logo"].src = eval(imgName + "nb.src");
        }
}

function img_nbOff(imgName)
{
        if (document.images)       
        {
        document["logo"].src = "../pics_front/az_title_bluenav.gif";
        }
}