var list_all = 3;

function listing(){

	for(i=1;i<=list_all;i++){ 
		document.getElementById("int_" + i).style.display = "none";
	}
	
	pg_num = location.search.replace("?int_=","");
	
	if (pg_num == "") {
		pg_num = 1;
	}
	
	pg_view();
}

function go_pg(nex_num){
	document.getElementById("int_" + pg_num).style.display = "none";
	document.getElementById("btn_" + pg_num).innerHTML = '<a href="javascript:go_pg(' + pg_num + ')"><img src="../img/space.gif" alt="' + pg_num + '"><\/a>';
	pg_num = nex_num;
	document.getElementById("int_"+ pg_num).style.display = "block";
	
	pg_view();
}

function pg_view(){
	location.hash = "?int_=" + pg_num;
	document.getElementById("int_"+ pg_num).style.display = "block";
	document.getElementById("btn_" + pg_num).innerHTML = '<span><img src="../img/space.gif" alt="' + pg_num + '"><\/span>';
}

function notes(anc){
	window.open("notes.html#note_"+anc,"notes","width=500,height=600,scrollbar=no");
}