window.onload = function() {
	setInterval("viewDiapo()",3000);
	imgCours = 1;
	nbrImg = 5;
	if ( document.getElementById("top").getElementsByTagName("ul")[0] ) initMenu();
	if ( document.getElementById("renseigne") )  document.getElementById("renseigne").onsubmit = function() { return verif_form(this,"fr") }
}

function viewDiapo() {
	if ( imgCours == nbrImg ) imgCours = 0;
	imgCours += 1;
	document.getElementById("diapo").style.background = "url(/office-tourisme/themes/default/img/diapo_"+imgCours+".jpg) no-repeat";
}

/************************
		MENU
************************/
function initMenu() {
	menuTipi = document.getElementById("top").getElementsByTagName("ul")[0];
	for ( var i=0; i<menuTipi.getElementsByTagName("li").length; i++ ) {
		if ( menuTipi.getElementsByTagName("li")[i].getElementsByTagName("ul")[0] ) {
		menuTipi.getElementsByTagName("li")[i].onmouseover = function() { showMenu(this,"show") }
		menuTipi.getElementsByTagName("li")[i].onmouseout = function() { showMenu(this,"hidde") }
		}
	}
}
function showMenu(itemMenu,etat) {
	if ( etat == "show" ) {
		itemMenu.getElementsByTagName("ul")[0].style.visibility = "visible";
		itemMenu.getElementsByTagName("span")[0].style.textDecoration = "underline";
	}
	else {
		itemMenu.getElementsByTagName("ul")[0].style.visibility = "hidden";
		itemMenu.getElementsByTagName("span")[0].style.textDecoration = "none";
	}
}

/************************
		FORMULAIRES
************************/

// vérification de formulaire
test_text = ""; // à renseigner si on utilise une chaîne de caractère identique pour chaque label de champs obligatoire
test_class = "oblig"; // à renseigner si on identifie les labels par une class css
message_fr = "merci de remplir tous les champs obligatoires";
message_uk = "please complete all the required fields";

function verif_form(formulaire,langue) {
	vide = 0;
	for ( var i=0; i<formulaire.getElementsByTagName("label").length; i++ ) {
		element_label = formulaire.getElementsByTagName("label")[i];
		txt_label = element_label.firstChild.nodeValue;
		class_label = element_label.className;
		if ( (test_text != "" && txt_label.indexOf(test_text) != -1) || (test_class != "" && class_label == test_class) ) {
			if ( element_label.getAttribute("htmlFor") || element_label.getAttribute("for") ) {
				if ( document.all ) id_champs = element_label.getAttribute("htmlFor");
				else id_champs = element_label.getAttribute("for");
				champs = document.getElementById(id_champs);
				if ( champs.tagName == "INPUT" && champs.getAttribute("type") == "text" ) {
					if ( champs.value == "" ) vide ++;
				}
				else if ( champs.tagName == "TEXTAREA" && champs.value == "" ) vide ++;
			}
			else {
				if ( element_label.getElementsByTagName("input")[0] ) {
					input_label = element_label.getElementsByTagName("input")[0];
					if ( input_label.getAttribute("type") == "text" && input_label.value == "" ) vide ++;
				}
				else if ( element_label.getElementsByTagName("textarea")[0] && element_label.getElementsByTagName("textarea")[0].value == "" ) vide ++;
			}
		}
	}
	for (var j=0; j<formulaire.getElementsByTagName("select").length; j++ ) {
		liste = formulaire.getElementsByTagName("select")[j];
		for ( var k=0; k<liste.options.length; k++) {
			if ( liste.options[k].selected == true && liste.options[k].value == "" ) vide ++;
		}
	}
	if ( vide != 0 ) {
		if (langue == 'fr') message = message_fr;
		else message = message_uk;
		alert(message);
		return false;
	}
	else {
		return true;
	}
}