function dropdown(id){
			
	var element = document.getElementById("dropdown" + id);
				
	if(element.style.display == "none" || element.style.display == ""){
				
		element.style.display = "block";
		document.getElementById("bullet" + id).src = "/images/icons/bullet_arrow_down.gif";
	}
	else{
				
		element.style.display = "none";
		document.getElementById("bullet" + id).src = "/images/icons/bullet_arrow_right.gif";
	}
				
	var i;
				
	for(i = 1; i <= 2; i++){
				
		if(i != id){
					
			document.getElementById("dropdown" + i).style.display = "none";
			document.getElementById("bullet" + i).src = "/images/icons/bullet_arrow_right.gif";
		}
	}
				
	return;
}