function loginencrypt() {
	    oForm = document.forms["osfloginform"];
	    oPublicModulus = oForm.elements["public_modulus"];
	    oPublicExponent = oForm.elements["public_exponent"];
	    oPasswd = oForm.elements["passwd"];
	    oEpassword = oForm.elements["epassword"];
            
	    if ( oPasswd.value == '' ) {
			return true;
	    }
	    var rsa = new RSAKey();
	    // rsa.setPublic($('public_modulus').value, $('public_exponent').value);
	    rsa.setPublic(oPublicModulus.value, oPublicExponent.value);
	    var res = rsa.encrypt(oPasswd.value);
	    if (res) {
	  		oEpassword.value = hex2b64(res);
	  		oPasswd.value = '';
	  		return true;
	    }
            oPasswd.value = '';
	    return false;
};