function gd(el){
	return document.getElementById(el);
}

function help_msg(el,tx)  {
	gd(el).innerHTML = tx;
}

function t(el){
	gd(el).style.display = gd(el).style.display != 'none'?'none':'';
}

function wopen(wdt,hgt,durl){
	var left = (screen.availWidth/2) - (wdt/2);
	var top = (screen.availHeight/2) - (hgt/2);
	var dwin = window.open(durl,'Insert','width='+wdt+',height='+hgt+', left='+left+', top='+top);
	dwin.focus();
}

function open_npo(npo_link){
	npo = window.open(npo_link,'newsmemory','left=0,top=0,height='+screen.availWidth+',width='+screen.availWidth+',resizable=yes');
	return false;
	/*npo.moveTo(0,0);
	npo.resizeTo(screen.availWidth,screen.availHeight);*/
}

function open_feedback_form(){
	if (gd('feedback_form') && gd('feedback_button')){
		gd('feedback_form').style.display = 'block';
		gd('feedback_form').style.top = '0px';
		gd('feedback_button').style.display = 'none';
		gd('feedback_message').focus();
		gd('feedback_spamtest').value = '20135';
	}
}

function close_feedback_form(){
	if (gd('feedback_form') && gd('feedback_button')){
		gd('feedback_form').style.display = 'none';
		gd('feedback_form').style.top = '-240px';
		gd('feedback_button').style.display = 'block';
	}
}

function send_feedback(){
	if (gd('feedback_message') && gd('feedback_spamtest')){
		
		if (gd('feedback_message').value.length < 20){
			alert('Si prega di inserire almeno 20 caratteri di testo');
			gd('feedback_message').focus();
			return false;
		}
		
		if (gd('feedback_spamtest').value == '20135'){
			gd('feedback_spamtest').value = '85113';
		} else {
			return false;
		}
		
		alert('Messaggio inviato. Grazie!');
		gd('feedback_form').submit();
	}
}

function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}

function f_scrollLeft() {
	return f_filterResults (
		window.pageXOffset ? window.pageXOffset : 0,
		document.documentElement ? document.documentElement.scrollLeft : 0,
		document.body ? document.body.scrollLeft : 0
	);
}
function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}

function fpos(obj) {
	if (obj){
		var curleft = curtop = 0;
		if (obj.offsetParent) {
			do {
				curleft += obj.offsetLeft;
				curtop += obj.offsetTop;
			} while (obj = obj.offsetParent);
			return [curleft,curtop];
		}
	}
	return false;
}

function check_email(eml){
	return (eml.search(/^\w+((-\w+)|(\.\w+))*\@\w+((\.|-)\w+)*\.\w+$/) != -1) ? true : false;
}

function send_to_friend(art_id){
	if (art_id != '' && gd('mail_address')){
		if(check_email(gd('mail_address').value)){
			xget('sendto=' + gd('mail_address').value + '&article=' + art_id , 'float_xbox_mail');
		} else {
			alert("Si prega di inserire un indirizzo email valido");
		}
	}
}

function detectBrowser(){
	var appVer   = navigator.appVersion.toLowerCase();
	var agt      = navigator.userAgent.toLowerCase();
	var bName    = navigator.appName;
	var iePos    = agt.indexOf('msie');
	var operaPos = agt.indexOf('opera');
	var ns6Pos   = agt.indexOf('netscape6');
	var geckoPos = agt.indexOf('gecko');
	var rvPos    = agt.indexOf('rv:')
	
	var version = parseFloat(appVer);
	if (iePos!=-1 && operaPos==-1)
	  version = parseFloat(agt.substring(iePos+5,agt.indexOf  (';',iePos)));
	else if (operaPos!=-1) {
	  version = parseFloat(agt.substring(operaPos+5,agt.indexOf('[',operaPos)));
	  bName= "Opera";
	}
	else if (ns6Pos !=-1)
	  version = parseFloat(agt.substring(ns6Pos+10));
	else if (geckoPos !=-1 && rvPos !=-1) {
	   version = agt.substring(rvPos+3,agt.indexOf(')',rvPos));
	   bName= "Mozilla";
	}
	return bName;
}

function togglesize(objid, defsize, deflineheight){
	if (gd(objid)){
		var currentSize = gd(objid).style.fontSize.replace("px","");
		if (currentSize && currentSize != defsize){
			gd(objid).style.fontSize = defsize + 'px';
			gd(objid).style.lineHeight = deflineheight + 'px';
		} else {
			gd(objid).style.fontSize = defsize + 2 + 'px';
			gd(objid).style.lineHeight = deflineheight + 3 + 'px';
		}
		with (gd('tools_size').style) {
			if (backgroundColor != 'rgb(128, 0, 0)' && backgroundColor.toLowerCase() != '#800000'){
				backgroundColor = '#800000';
			} else {
				backgroundColor = '';
			}
		}
	}
}

function print_content(content_id){
	if (content_id && gd('print_preview')){
		gd('print_preview').src = '/print.php?q=' + content_id + '';
	}
}

function tabshow(ident,tabid){
	if (gd(tabid) && ident){
		var divs = document.getElementsByTagName("div");
		for(i=0; i < divs.length; i++){
			if (divs[i].id.substr(0,ident.length) == ident){
				divs[i].style.display = 'none';
			}
		}
		gd(tabid).style.display = '';
	}
}

show_menu = function(menu_id){
	opener_id = menu_id.substr(6,menu_id.length-6);
	if (gd(opener_id) && gd(menu_id)){
		gd(opener_id).style.backgroundColor = '#800000';
		if (gd(menu_id).style.display != 'block'){
			with (gd(menu_id).style){
				zIndex = 99;
				left = fpos(gd(opener_id))[0] + 'px';
				top = (fpos(gd(opener_id))[1] + gd(opener_id).offsetHeight) + 'px';
				display = 'block';
				if (gd(menu_id).parentNode){
					el_right = fpos(gd(menu_id))[0] + gd(menu_id).offsetWidth;
					container_right = fpos(gd(menu_id).parentNode)[0] + gd(menu_id).parentNode.offsetWidth;
					if (el_right > container_right){
						left = (fpos(gd(opener_id))[0] - (gd(menu_id).offsetWidth - gd(opener_id).offsetWidth)) + 'px';
					}
				}
			}
		}
	}
}

hide_menu = function(menu_id){
	opener_id = menu_id.substr(6,menu_id.length-6);
	if (gd(menu_id) && gd(menu_id)){
		gd(menu_id).style.display = 'none';
		gd(opener_id).style.backgroundColor = '';
	}
}

function xget(x_params,target_id) {
	/*@cc_on @if (@_win32 && @_jscript_version >= 5) if (!window.XMLHttpRequest)
	window.XMLHttpRequest = function() { return new ActiveXObject('Microsoft.XMLHTTP') }
	@end @*/
	
	if (x_params){
		var x_url = '/xrequest.php?'+x_params;	
		this.req = new XMLHttpRequest();
		req.open('GET', x_url, true);
		if (target_id && gd(target_id)){
			req.onreadystatechange = function (aEvt) {
				if (req.readyState == 4) {
					if(req.status == 200) {
						gd(target_id).innerHTML = req.responseText;
					}
				}
			}
		}
		req.send(null);
	}
}

function fbs_click(){
	u=location.href;t=document.title;window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');
	return false;
}

function bookmarklink(url,btitle){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
  window.external.AddFavorite(url,btitle);
  } else if (navigator.appName == "Netscape") {
    window.sidebar.addPanel(btitle,url,"");
  } else {
    alert("per aggiungere questa pagina ai preferiti\npremere CTRL-D (Netscape) o CTRL-T (Opera)");
  }
}

function loadMainMenu(){
	
	// caricamento di tutti i menu a tendina presenti in pagina
	// ma non di quelli già elaborati
	
	var a_all = document.getElementsByTagName("a");
	for(var i=0; i < a_all.length; i++){
		if (a_all[i].id.substr(0,5) == 'menu_'){
			if (!a_all[i].onmouseover && !gd('float_'+a_all[i].id).onmouseover){
				a_all[i].onmouseover = function(evt){ show_menu('float_'+this.id) }	
				a_all[i].onmouseout = function(evt){ hide_menu('float_'+this.id) }	
				gd('float_'+a_all[i].id).onmouseover = function(evt){ show_menu(this.id) }	
				gd('float_'+a_all[i].id).onmouseout = function(evt){ hide_menu(this.id) }	
			}
		}
	}	
	
}

function lockSite(){

	if (!gd('locker')){
		cover = document.createElement('div');
		with (cover.style){
			id = 'locker';
			position = 'absolute';
			float = 'left';
			zIndex = 99;
			left = '0px';
			top = '0px';
			right = '0px';
			bottom = '0px';
			backgroundColor = '#000000';
			filter = 'alpha(opacity=50)';
			opacity = (0.5);
	    MozOpacity = (0.5);
	    KhtmlOpacity = (0.5);
		}
		document.body.appendChild(cover);
	} else {
		cover = gd('locker');
	}
	return cover;
}

function unlocksite(){

	if (gd('locker')){
		gd('locker').parentNode.removeChild(gd('locker'));
	}

}

window.onload = function(){

	try {
  	document.execCommand("BackgroundImageCache", false, true);
	} catch(err) {}
	
	// caricamento dei menu
	loadMainMenu();
	
	var img_all = document.getElementsByTagName("img");
	for(var i=0; i < img_all.length; i++){
		if (img_all[i].id.substr(0,5) == 'xbox_'){
			if (gd('float_'+img_all[i].id)){
				img_all[i].onclick = function(evt){ 
					if (gd('float_'+this.id) && gd('float_'+this.id).style.display != 'block'){
						show_menu('float_'+this.id);
					} else {
						hide_menu('float_'+this.id);
					}
				}	
			}
		}
	}	
	
	if (gd('gallery_thumbs') && gd('gallery_right') && gd('gallery_left') && gd('content_details_gallery')){
	
		var gx = gd('gallery_thumbs').offsetLeft;
		var gy = gd('gallery_thumbs').offsetTop;
		var gw = gd('gallery_thumbs').offsetWidth;
		var gv = 52;
		
		var imgs = gd('gallery_thumbs').getElementsByTagName('img');
		var imglen = imgs.length;

		maxleft = 0 - ((imglen*gv) - (6*gv));
		
		moveLeft = function(){
			if (gd('gallery_thumbs').offsetLeft<gx){
				gd('gallery_thumbs').style.left = gd('gallery_thumbs').offsetLeft+gv+"px";
				gd('gallery_thumbs').style.width = gd('gallery_thumbs').offsetWidth-gv+"px";
			}
		}
		
		moveRight = function() {
			if (gd('gallery_thumbs').offsetLeft > maxleft) {
				gd('gallery_thumbs').style.left = gd('gallery_thumbs').offsetLeft-gv+"px";
				gd('gallery_thumbs').style.width = gd('gallery_thumbs').offsetWidth+gv+"px";
			}
		}
		
		gd('gallery_left').onmouseout = function(evt) { this.src = '/images/arrow_left.gif'; return false; }		
		gd('gallery_left').onclick = function(evt) { moveLeft(); return false; }
		gd('gallery_left').ondblclick = function(evt) {	moveLeft();	return false;	}
		gd('gallery_left').onmouseover = function(evt) { this.src = '/images/arrow_left_hover.gif'; return false; }
		
		gd('gallery_right').onmouseout = function(evt) { this.src = '/images/arrow_right.gif'; return false; }
		gd('gallery_right').onclick = function(evt) {	moveRight(); return false; }
		gd('gallery_right').ondblclick = function(evt) { moveRight();	return false;	}
		gd('gallery_right').onmouseover = function(evt) { this.src = '/images/arrow_right_hover.gif'; return false; }	
			
	}
	
	
	if (gd('hover_box') && gd('image_full')){
		
		// Lore: 20090417 Anti trascinamento delle foto
		gd('image_full').onmousedown = function(evt){
			return false;
		}
		// Lore: 20090417 Anti tasto destro sulle foto
		gd('image_full').oncontextmenu = function(evt){
			return false;
		}
		
		gd('hover_box').onmousemove = function(evt){
			gd('image_full').onmousemove;
		}
		gd('hover_box').onmouseover = function(evt){
			gd('image_full').onmousemove;
		}
		gd('image_full').onmouseover = function(evt){
			//gd('hover_box').style.display = 'block';
			gd('image_full').onmousemove;
		}
		gd('image_full').onmouseout = function(evt){
			gd('hover_box').style.display = 'none';
		}
		gd('image_full').onmousemove = function(evt){

			gd('hover_box').style.display = 'block';
			var e = (evt) ? evt : window.event;
    	var scx = f_scrollLeft();
			var scy = f_scrollTop();
    	cx = (e.pageX) ? e.pageX : (e.clientX + scx);
    	cy = (e.pageY) ? e.pageY : (e.clientY + scy);	
    	
    	cx = cx + 12;
    	cy = cy + 12;
    	   	
    	if ((cx+12+gd('hover_box').offsetWidth) >= (gd('image_full').offsetWidth + fpos(gd('image_full'))[0])){
    		cx = (fpos(gd('image_full'))[0] + gd('image_full').offsetWidth) - gd('hover_box').offsetWidth - 10;
    	}
    	
    	gd('hover_box').style.left = cx + 'px';
    	gd('hover_box').style.top = cy + 'px';
    	
    	
		}
	}

	if (gd('ac')){
		gd('ac').style.display = 'none';
	}

}