bar1= new Image();
bar1.src = "images/aboutp.gif";
bar2= new Image();
bar2.src = "images/edup.gif";
bar3= new Image();
bar3.src = "images/consultp.gif";

function mover1(){
document.about.src="images/aboutp.gif"
}
function mout1(){
document.about.src="images/aboutw.gif"
}

function mover2(){
document.edu.src="images/edup.gif"
}
function mout2(){
document.edu.src="images/eduw.gif"
}

function mover3(){
document.consult.src="images/consultp.gif"
}
function mout3(){
document.consult.src="images/consultw.gif"
}