//affiche un élément HTML 
function displayAndBlockElement(elementName) {
	if (document.getElementById(elementName) != null) {
		document.getElementById(elementName).style.visibility = "visible";
		document.getElementById(elementName).style.display = "block";
	}
}

// masque un élément HTML
function hideAndUnblockElement(elementName) {
	if (document.getElementById(elementName) != null) {
		document.getElementById(elementName).style.visibility = "hidden";
		document.getElementById(elementName).style.display = "none";
	}
}

function changeViewType(){
	makeDocumentUnclickable();
	var actionForm = document.getElementById("actionForm");
	actionForm.actionToDo.value = "changeViewType";
	waitForRequestDone();
}

function changeViewTypeWithParam(anc){
	makeDocumentUnclickable();
	var actionForm = document.getElementById("actionForm");
	actionForm.action = "/result-search-accom.htm"+anc;
	actionForm.actionToDo.value = "changeViewType";
	waitForRequestDone();
}