function showPic (whichpic,whicha) {
 if (document.getElementById) {
  document.getElementById('placeholder').src = '_images/projects/'+whichpic+'.jpg';
  var links = document.getElementById('projects-gallery').getElementsByTagName('a');
  for(i=0;i<links.length;i++){
   links[i].style.backgroundColor='#d0cabb';
  }
  whicha.style.backgroundColor='#89a987';
  return false;
 } else {
  return true;
 }
}