// pagination functions
window.addEvent('domready',function(){

var pg_page = 0;
var pg_count = $$('div.page').length;

pagination = function () {
	if(document.getElementById('pg_page'+pg_page)) document.getElementById('pg_page'+pg_page).style.display = 'block';
	if($('pglink_prev')) $('pglink_prev').setStyle('display','none');
}

changePage = function (p) {
	
	pg_page += p;
	if(pg_page < 0) pg_page = 0;
	if(pg_page >= pg_count) pg_page = pg_count - 1;
	
	if(pg_page == 0){
		$('pglink_prev').setStyle('display','none');		
	} else {
		$('pglink_prev').setStyle('display','block');
	}
	
	if(pg_page >= pg_count - 1){
		$('pglink_next').setStyle('display','none');		
	} else {
		$('pglink_next').setStyle('display','block');
	}

	$$('div.page').setStyle('display','none');
	if(document.getElementById('pg_page'+pg_page)) document.getElementById('pg_page'+pg_page).style.display = 'block';
	
}

pagination();

});