<script type="text/javascript" language="javascript">

					function validate() {
						var elmnt_id;
						elmnt_id = document.getElementById('custom');
						if (elmnt_id.selected) {
							if (is_blank(document.form1.s_port_s)) {
								document.form1.s_port_s.focus();
								return fail("You must provide a starting port and (optionally) an ending one!");
							}
							else if (!is_valid_Port(document.form1.s_port_s.value)) {
								document.form1.s_port_s.focus();
								return fail("Ports are between 1 and 65535!");
							}
							else if (!is_blank(document.form1.s_port_e) && !is_valid_Port(document.form1.s_port_e.value)) {
								document.form1.s_port_e.focus();
								return fail("Ports are between 1 and 65535!");
							}
							else if (!is_blank(document.form1.s_port_e)) {
								var sport_s = parseInt(document.form1.s_port_s.value,10);
								var sport_e = parseInt(document.form1.s_port_e.value,10);
								if (sport_s > sport_e) {
									document.form1.s_port_s.focus();
									return fail("Start port values must be less or equal than ending port values!");
								}
							}
						}
						elmnt_id = document.getElementById('host_list');
						if (elmnt_id.selected) {
							if (is_blank(document.form1.in_host_list)) {
								document.form1.in_host_list.focus();
								return fail("You must provide a comma-separated list of remote hosts/IPs!");
							}
							//else {
								//var host_array = document.form1.in_host_list.value.split(",");
								//var host_id = 0;
								//while (host_id < host_array.length) {
									//alert(host_array[host_id]);
									//host_id += 1;
								//}
							//}
						}
						if (!is_valid_IP(document.form1.d_ip.value)) {
							document.form1.d_ip.focus();
							return fail("Invalid IP address!");
						}
						elmnt_id = document.getElementById('diff');
						return true;
					}

					function change_protocol(field) {
						switch ( field.value ) {
							case 'custom':
								document.form1.s_type.disabled = false;
								document.form1.s_port_s.disabled = false;
								document.form1.s_port_e.disabled = false;
								document.form1.s_type.value = 'both';
								document.form1.s_port_s.value = '';
								document.form1.s_port_e.value = '';
								set_visible('on_proto_port_1', 1);
								set_visible('on_proto_port_2', 1);
								set_visible('on_dest_port', 1);
								set_visible('off_dest_port', 0);
								document.form1.d_port.disabled = false;
								document.form1.d_port.value = '';
								break;
							default:
								document.form1.s_type.value = '';
								document.form1.s_port_s.value = '';
								document.form1.s_port_e.value = '';
								document.form1.s_type.disabled = true;
								document.form1.s_port_s.disabled = true;
								document.form1.s_port_e.disabled = true;
								set_visible('on_proto_port_1', 0);
								set_visible('on_proto_port_2', 0);
								set_visible('on_dest_port', 0);
								set_visible('off_dest_port', 1);
								elmnt_id = document.getElementById('same');
								elmnt_id.checked = true;
								document.form1.d_port.value = '';
								document.form1.d_port.disabled = true;
								break;
						}
						document.getElementById("same").checked = true;
						change_r_port(document.getElementById("same"));
					}

					function change_in_host(field) {
						switch ( field.value ) {
							case 'host_list':
								document.form1.in_host_list.disabled = false;
								break;
							default:
								document.form1.in_host_list.value = '';
								document.form1.in_host_list.disabled = true;
								break;
						}
					}

					function change_r_port(field) {
						if (field.value == 'same') {
							document.form1.d_port.disabled = true;
						}
						else {
							document.form1.d_port.disabled = false;
						}
						return true;
					}

					function change_multiple(field) {
						if (field && field.value != '') {
							set_visible('on_dest_port', 0);
						} else {
							set_visible('on_dest_port', 1);
						}
					}

					function init() {
						var elmnt_id;
						if (elmnt_id = document.getElementById("")) {
							elmnt_id.selected = true;
						}
						if (elmnt_id = document.getElementById("custom")) {
							elmnt_id.selected = true;
						}
						change_protocol(document.form1.protocol);
						if ("custom" == 'custom') {
							document.form1.s_type.value = "both";
							document.form1.s_port_s.value = "";
							document.form1.s_port_e.value = "";
						}
						if (elmnt_id = document.getElementById("host_all")) {
							elmnt_id.selected = true;
						}
						change_in_host(document.form1.in_host);
						document.form1.d_ip.value = "";
						document.form1.in_host_list.value = "";
						if (elmnt_id = document.getElementById("same")) {
							elmnt_id.checked = true;
							change_r_port(elmnt_id);
						}
						document.form1.d_port.value = "";
						if (document.getElementById('s_port_s').value != '') {
							change_multiple(document.getElementById('s_port_e'));
						}
						return true;
					}

					</script>