// JavaScript Document


function changenav(name){

 if(name=='home'){
  	document.images['home1'].src="images/home_on.gif";
 }else{
 	document.images['home1'].src="images/home_off.gif";
 }
 
 if(name=='bio'){
  	document.images['bio1'].src="images/biography_on.gif";
 }else{
 	document.images['bio1'].src="images/biography_off.gif";
 }
 
 if(name=='credentials'){
  	document.images['credentials1'].src="images/credentials_on.gif";
 }else{
 	document.images['credentials1'].src="images/credentials_off.gif";
 }
 
 if(name=='gallery'){
  	document.images['gallery1'].src="images/gallery_on.gif";
 }else{
 	document.images['gallery1'].src="images/gallery_off.gif";
 }
 
  if(name=='contact'){
  	document.images['contact1'].src="images/contact_on.gif";
 }else{
 	document.images['contact1'].src="images/contact_off.gif";
 }


}

function showimage(imagename){
	document.images['bigimage'].src="images/"+imagename+".jpg";
}