/* Fonction Retour */
function Back() {
        document.location.href="javascript:history.go(-1)";
}

/* Fonction Reset : Reset des champs de sequence */
function Reset() {
	document.formSeq.ustr_seq1.value = '';
	document.formSeq.ustr_seq2.value = '';
}

/* Fonction Lien Externe */
function ExternalWin(url) {
        open(url,'','width="100%",height="100%",status=yes,directories=yes,toolbar=yes,location=yes,menubar=yes,scrollbars=yes,resizable=yes');
}

/* Fonction vérifiant la saisie des deux zones de texte */
function CheckSeq() {
	var seq1 = formSeq.ustr_seq1.value;
        var seq2 = formSeq.ustr_seq2.value;
	if ((seq1 == "" && seq2 == "") || (seq1 == "" || seq2 == "")){
		alert ("Paste two sequences to compare !");
		return false;
	}
	else { 
		return true;
	}
}