function logo_onmouseout() {    
  var imglogo = returnObjById("idlogo");
  imglogo.src="images/IDlogoRest.png";
}

function logo_onmouseover() {
  var imglogo = returnObjById("idlogo");
  imglogo.src="images/IDlogoMouseOver.png";
}

function logo_onmousedown() {
  var imglogo = returnObjById("idlogo");
  imglogo.src="images/IDlogoPressed.png";
}

function logo_onmouseclick() {
  window.location = "./index.html";
}