function show(baliseId) {
	if (document.getElementById && document.getElementById(baliseId) != null) {
		document.getElementById(baliseId).style.visibility='visible';
		document.getElementById(baliseId).style.display='block';
	}
}

function hide(baliseId) {
	if (document.getElementById && document.getElementById(baliseId) != null) {
		document.getElementById(baliseId).style.visibility='hidden';
		document.getElementById(baliseId).style.display='none';
	}
}

function show_i(baliseId) {
	if (document.getElementById && document.getElementById(baliseId) != null) {
		document.getElementById(baliseId).style.visibility='visible';
		document.getElementById(baliseId).style.display='inline';
	}
}

function hide_i(baliseId) {
	if (document.getElementById && document.getElementById(baliseId) != null) {
		document.getElementById(baliseId).style.visibility='hidden';
		document.getElementById(baliseId).style.display='none';
	}
}

function showHide(id) {
	if ((document.getElementById(id).style.visibility=='visible') || (document.getElementById(id).style.display=='block') ) {
		hide(id);
	}
	else {
		show(id);
	}
}

function showHide_i(id) {

	if ((document.getElementById(id).style.visibility=='visible') || (document.getElementById(id).style.display=='block') ) {
		hide_i(id);
	}
	else {
		show_i(id);
	}
}

function switchTreeDiv(baliseId, imgId, imgHiddenSrc, imgExpandedSrc) {
	if ( (document.getElementById(baliseId).style.visibility=='visible') || (document.getElementById(baliseId).style.display=='block') ) {
		hide(baliseId);
		document.getElementById(imgId).src = imgHiddenSrc;
	}
	else {
		show(baliseId);
		document.getElementById(imgId).src = imgExpandedSrc;
	}
}

function setCheckbox(obj, min, max, value) {
	for (var i=min; i<=max; i++) {
		object = eval(obj + i);
		object.checked = value;
	}
}

function changeLayer(prefix,form_objet) {
	for (i = 0; i < form_objet.changeLanguage.options.length; i++) {
		var id_language = form_objet.changeLanguage.options[i].value;
		if (form_objet.changeLanguage.options[i].selected == true) {
			show(prefix + id_language + '_div');
		}
		else {
			hide(prefix + id_language + '_div');
		}
	}
}

function switchDiv(baliseId) {
	if ( (document.getElementById(baliseId).style.visibility=='visible') || (document.getElementById(baliseId).style.display=='block') ) {
		hide(baliseId);
	}
	else {
		show(baliseId);
	}
}