minus = new Image; minus.src="../images/minus.gif";
plus = new Image; plus.src="../images/plus.gif";
var bulletname;
function toggle( targetId ){
  if (document.getElementById){
  		target = document.getElementById( targetId );
		bulletname = "bullet_" + target.getAttribute('id');
  			if (target.style.display == "none"){
  				target.style.display = "";
				document.images[bulletname].src = minus.src;
  			} else {
  				target.style.display = "none";
				document.images[bulletname].src = plus.src;
  			}
  	}
}

function showall() {
building.style.display = "";
creative.style.display = "";
ecommerce.style.display = "";
entertainment.style.display = "";
exhibitions.style.display = "";
financial.style.display = "";
healthcare.style.display = "";
nonprofit.style.display = "";
pharmaceutical.style.display = "";
publications.style.display = "";
travel.style.display = "";
venture.style.display = "";
other.style.display = "";
bullet_building.src = minus.src;
bullet_creative.src = minus.src;
bullet_ecommerce.src = minus.src;
bullet_entertainment.src = minus.src;
bullet_exhibitions.src = minus.src;
bullet_financial.src = minus.src;
bullet_healthcare.src = minus.src;
bullet_nonprofit.src = minus.src;
bullet_pharmaceutical.src = minus.src;
bullet_publications.src = minus.src;
bullet_travel.src = minus.src;
bullet_venture.src = minus.src;
bullet_other.src = minus.src;
}

function hideall() {
building.style.display = "none";
creative.style.display = "none";
ecommerce.style.display = "none";
entertainment.style.display = "none";
exhibitions.style.display = "none";
financial.style.display = "none";
healthcare.style.display = "none";
nonprofit.style.display = "none";
pharmaceutical.style.display = "none";
publications.style.display = "none";
travel.style.display = "none";
venture.style.display = "none";
other.style.display = "none";
bullet_building.src = plus.src;
bullet_creative.src = plus.src;
bullet_ecommerce.src = plus.src;
bullet_entertainment.src = plus.src;
bullet_exhibitions.src = plus.src;
bullet_financial.src = plus.src;
bullet_healthcare.src = plus.src;
bullet_nonprofit.src = plus.src;
bullet_pharmaceutical.src = plus.src;
bullet_publications.src = plus.src;
bullet_travel.src = plus.src;
bullet_venture.src = plus.src;
bullet_other.src = plus.src;
}