if (document.images) {
 img1_on =new Image(); img1_on.src ="images/membersdown.png";
 img1_off=new Image(); img1_off.src="images/membersup.png";

 img2_on =new Image(); img2_on.src ="images/joindown.png";
 img2_off=new Image(); img2_off.src="images/joinup.png";

 img3_on =new Image(); img3_on.src ="images/eventsdown.png";
 img3_off=new Image(); img3_off.src="images/eventsup.png";

 img4_on =new Image(); img4_on.src ="images/memberdirectorydown.png";
 img4_off=new Image(); img4_off.src="images/memberdirectoryup.png";
 
 img5_on =new Image(); img5_on.src ="images/aboutdown.png";
 img5_off=new Image(); img5_off.src="images/aboutup.png";
 
 img6_on =new Image(); img6_on.src ="images/aboutorionareadown.png";
 img6_off=new Image(); img6_off.src="images/aboutorionareaup.png";

 img10_on =new Image(); img10_on.src ="images/maindown.png";
 img10_off=new Image(); img10_off.src="images/mainup.png";

}

function movr(k) {
 if (document.images)
  eval('document.img'+k+'.src=img'+k+'_on.src');
}

function mout(k) {
 if (document.images)
  eval('document.img'+k+'.src=img'+k+'_off.src');
}

function handleOver() {
 if (document.images)
  document.imgName.src=img_on.src;
}

function handleOut() {
 if (document.images)
  document.imgName.src=img_off.src;
}