function initActiveLayers() {
	for (i=1; i<4; i++) {

		var curr_active_zone = document.createElement('div');
		var curr_layer = getElem('layer' + i);
			
		curr_active_zone.id = 'active-zone-' + i;
		curr_active_zone.className = 'active-zone on';
		curr_active_zone.innerHTML = '&nbsp;';
	
		curr_active_zone.onmouseover =  function() { addClass(this.id, 'hover', false); }
		curr_active_zone.onmouseout =  function() { remClass(this.id, 'hover', true); }
		

		var curr_title_zone = document.createElement('div');
		curr_title_zone.className = 'title';
		curr_title_zone.innerHTML = '&nbsp;';
		
		curr_layer.appendChild(curr_title_zone);
		curr_layer.appendChild(curr_active_zone);		
	}
}

function parseOutlinks() {
	oulinkHrefs = getElementsByClass('outlink', 'a', 'page');
	for (i=0; i<oulinkHrefs.length; i++) {
		oulinkHrefs[i].onclick = function()	{ return (!window.open(this.href,'_blank')); }
	}
}


function hack_OnlyForOpera8() {
	if(navigator.userAgent.indexOf("Opera 8") != -1) {
		layers_items = getElementsByClass('layer', 'div', 'layers');
		for (i=0; i<layers_items.length; i++) {
			layers_items[i].style.minHeight = "420px";
		}
	}	
}


function is_Opera7() {
	if (navigator.userAgent.indexOf("Opera 7") == -1) {
		return false;
	} else {
		return true;		
	}
}