function checkRecherche() {
	var frm = document.recherche;
	var gosearch = false;
	for(var i = 0; i<frm.sg.length; i+=1) {
		if(frm.sg[i].checked == true) gosearch = true;
	}
	if(frm.allsg.checked == true) gosearch = true;

	for(var i = 1; i<frm.tpc1.options.length; i+=1) {
		if(frm.tpc1.options[i].selected == true) gosearch = true;
		if(frm.tpc2.options[i].selected == true) gosearch = true;
	}
	if(frm.alltpc.checked == true) gosearch = true;

	if(frm.ftq1.value != "") gosearch = true;
	if(frm.ftq2.value != "") gosearch = true;
	if(gosearch == false) {
		alert(document.getElementsByName("rechercheSubmitErrorMsg")[0].value);
	}
	return gosearch;
}