// JavaScript Document
menu=0;
function sub_menu(num){
	if (document.getElementById('s_'+num).style.display=='none'){
		document.getElementById('s_'+num).style.display='';
		document.getElementById('i_'+num).src='img/minus.gif';
	}
	else{
		document.getElementById('s_'+num).style.display='none';
		document.getElementById('i_'+num).src='img/plus.gif';
	}
	document.getElementById('main_menu').style.display='none';
	document.getElementById('main_menu').style.display='';
}
function main_menu(){
	if (menu==0){
		if (document.getElementById('main_menu').style.visibility=='hidden'){
			tb=document.getElementById('b').offsetHeight;
			document.getElementById('main_menu').style.top=tb-mh;
			document.getElementById('main_menu').style.left=document.getElementById('b').offsetLeft;
			document.getElementById('main_menu').style.visibility='visible';
			menu=1;
			open_menu();
		}
		else{
			menu=1;
			close_menu();
		}
	}
}

function open_menu(){
	if (document.getElementById('main_menu').offsetTop > tb){
		document.getElementById('main_menu').style.top=tb;
		menu=0;
	}
	else{
		document.getElementById('main_menu').style.top=document.getElementById('main_menu').offsetTop + 20;
		setTimeout('open_menu()', 10);
	}
}

function close_menu(){
	if (document.getElementById('main_menu').offsetTop < (tb-mh)){
		document.getElementById('main_menu').style.visibility='hidden';
		menu=0;
	}
	else{
		document.getElementById('main_menu').style.top=document.getElementById('main_menu').offsetTop - 20;
		setTimeout('close_menu()', 10);
	}
}

function resize_menu(){
	document.getElementById('main_menu').style.left=document.getElementById('b').offsetLeft;
}

function open_page(page){
	if (document.getElementById('pm_'+page).className!='act'){
		for (var j=1; j<11; j++){
			if (document.getElementById('pm_'+j)){
				document.getElementById('pm_'+j).className='';
				document.getElementById('p_'+j).style.display='none';
			}
		}
		for (var j=1; j<11; j++){
			if (document.getElementById('lb_'+j)){
				document.getElementById('lb_'+j).style.display='none';
			}
		}
		document.getElementById('pm_'+page).className='act';
		document.getElementById('p_'+page).style.display='';
		if (document.getElementById('lb_'+page)){
			document.getElementById('lb_'+page).style.display='';
		}
		
		//next previous pages
		for (var j=1; j<11; j++){
			if (!document.getElementById('p_'+j)){
				break;
			}
		}
		if (page==(j-1)){
			document.getElementById('np').style.display='none';
			document.getElementById('ns').style.display='';
		}
		else{
			document.getElementById('np').style.display='';
			document.getElementById('ns').style.display='none';
		}
		document.body.scrollTop = 0;
	}
}

function open_next_page(){
	for (p=1; p<11; p++){
		if (document.getElementById('pm_'+p).className=='act'){
			break;
		}
	}
	if (document.getElementById('pm_'+(p+1))){
		open_page(p+1);
	}
}

window.onresize=resize_menu;