if (document.images)
   {
     pic00on = new Image;    pic00on.src ="../../earth.gif"      ;
     pic00off= new Image;    pic00off.src="../../lsu.gif"        ;

     pic0on  = new Image;    pic0on.src ="../../0homeb.gif"      ;
     pic0off = new Image;    pic0off.src="../../0homeo.gif"      ;

     pic1on  = new Image;    pic1on.src ="../../1researchb.gif"  ; 
     pic1off = new Image;    pic1off.src="../../1researcho.gif"  ;

     pic2on  = new Image;    pic2on.src ="../../2teachb.gif"     ;
     pic2off = new Image;    pic2off.src="../../2teacho.gif"     ;

     pic3on  = new Image;    pic3on.src ="../../3serviceb.gif"   ; 
     pic3off = new Image;    pic3off.src="../../3serviceo.gif"   ;

     pic4on  = new Image;    pic4on.src ="../../4personalb.gif"  ;
     pic4off = new Image;    pic4off.src="../../4personalo.gif"  ;
   }
function turnon(imgName) { if (document.images)
   {imgOn=eval(imgName + "on.src");   document[imgName].src= imgOn;  }  }
function turnoff(imgName){ if (document.images)
   {imgOff=eval(imgName + "off.src"); document[imgName].src= imgOff; }  }