var multi_category	= function(el, code, next) {

	//Ä«Å×°í¸® ajax
	var url		= "/Libs/Ajax_control.class.php?mode=ajax_select_change&name="+el.name+"&code="+code+"&value="+el.value;

	new Ajax.Request(url, {
		method: 'get',
		onSuccess: function(transport) {
			var optionValues	= transport.responseXML.getElementsByTagName('optionValue');
			var optionTexts	 	= transport.responseXML.getElementsByTagName('optionText');

			document.getElementById(next).length = 0;
			document.getElementById(next)[0] = new Option("¼±ÅÃ", "");

			if(optionValues.length) {
				for(var i=0; i<optionValues.length; i++) {

					var optionV	= optionValues[i].firstChild.nodeValue;
					var optionT	= optionTexts[i].firstChild.nodeValue;

					document.getElementById(next)[i+1] = new Option(optionT, optionV);
				}
			} else {
				document.getElementById(next).length = 1;
			}
			Request=null;
		}
	});
}