// JavaScript Document
var op_opened 	= 0;
var faqs		= 11;
function open_op(op) {
	if(op!=op_opened) {
		for(i=1; i<op; i++){
			obj = MM_findObj("title-op-"+i);
			if(obj) obj.className = "invisible";
		}
		for(i=op+1; i<=faqs; i++) {	
			obj = MM_findObj("title-op-"+i);
			if(obj) obj.className = "invisible";
		}	
		MM_findObj("op-"+op).className 		= "visible";
		MM_findObj("back-op-"+op).className = "visible";
		op_opened 							= op;
	}
}
function show_all_op() {
	for(i=1; i<op_opened; i++){
		obj = MM_findObj("title-op-"+i);
		if(obj) obj.className = "visible";
	}
	for(i=op_opened+1; i<=faqs; i++) {	
		obj = MM_findObj("title-op-"+i);
		if(obj) obj.className = "visible";
	}	
	MM_findObj("op-"+op_opened).className 		= "invisible";
	MM_findObj("back-op-"+op_opened).className	= "invisible";
	op_opened									= 0;
}