function adicionarFavoritos(){
	
	var title = "Horta Pronta";
	var url = "http://www.hortapronta.pt";
	
	if( navigator.userAgent.indexOf('MSIE') > -1 ){
		window.external.AddFavorite(url, title);
	} else if( navigator.userAgent.indexOf('opera') > -1 ) {
		alert( 'Carregue CTRL+T para adicionar aos favoritos' );
	} else {
		alert( 'Carregue CTRL+D para adicionar aos favoritos' );
	}
	
}

function getWindowHeight() {
  var windowHeight=0;
  if (typeof(window.innerHeight)=='number') {
    windowHeight=window.innerHeight;
  }
  else {
    if (document.documentElement&&
      document.documentElement.clientHeight) {
        windowHeight=
          document.documentElement.clientHeight;
    }
    else {
      if (document.body&&document.body.clientHeight) {
        windowHeight=document.body.clientHeight;
      }
    }
  }
  return windowHeight;
}

function setFooter() {
  if (document.getElementById) {
    var windowHeight=getWindowHeight();
    if (windowHeight>0) {
      var contentHeight=
        document.getElementById('container').offsetHeight;
      var footerElement=
        document.getElementById('footer');
      var footerHeight=footerElement.offsetHeight;
      if (windowHeight-(contentHeight+footerHeight)>=0) {
        footerElement.style.position='relative';
        footerElement.style.top=(windowHeight-
          (contentHeight+footerHeight))+'px';
      }
      else {
        footerElement.style.position='static';
      }
    }
  }
}

window.onload = function() {
  setFooter();
}
window.onresize = function() {
  setFooter();
}