function agrandirPourOpera() {
	var navi = navigator.userAgent;
	if (navi.indexOf("Opera") != -1) {
		document.getElementById('divPrincipale').style.fontSize = "110%";
	}
}

/* Fonction pour les formulaires de recherche */
function openBlankRechRess(blank) {
	form = document.getElementById('formRessource');
	if(blank)
		form.target = '_blank';
	else
		form.target = '';
}

function openBlankRechGlobale(blank) {
	form = document.getElementById('formRechGlobale');
	if(blank)
		form.target = '_blank';
	else
		form.target = '';
}