var current_id=0;

function viewLinkById(id, last_id){
	
	if(current_id==0||current_id!=id){

		$("#menu"+id+"_none").addClass("line active2");
		if(last_id!=0){
			$("#menu"+last_id+"_active").slideUp("slow");
			$("#menu"+last_id+"_none").fadeIn("fast");
			$("#menu"+last_id+"_none").removeClass("line active2");
			$("#menu"+last_id+"_none").addClass("line");
		}
		
		$("#menu"+id+"_active").slideDown("slow");
		
		current_id = id;
		
	} else {
		$("#menu"+id+"_active").slideUp("slow");
		$("#menu"+id+"_none").removeClass("line active2");
		$("#menu"+id+"_none").addClass("line");
		current_id = 0;
	}
}
function closeLinkById(id){
	
	$("#menu"+id+"_active").slideUp("slow");
	$("#menu"+id+"_none").addClass("line");
	
	current_id = 0;
}

function changeTopPicture(id, filename){
	var path = "portfolio/"+filename+"";
	document.getElementById(id).src = path;
}