var RANKUP_TEACHER	= function() {

	this.base_url	= "";

	this.addCate	= {};
	this.addCate['area']		= 3;		//Ãß°¡ÇÒ ¼ö ÀÖ´Â Áö¿ª °¹¼ö
	this.addCate['lesson']	= 3;		//Ãß°¡ÇÒ ¼ö ÀÖ´Â °ú¸ñ °¹¼ö

	this.addSubject	= new Array(this.addCate['lesson']);
	this.addArea		= new Array(this.addCate['area']);
}


/*Áö¿ª ajax*/
RANKUP_TEACHER.prototype.cate_ajax	= function(el, checkValue) {
	var ID	= el.parentNode.getElementsByTagName('select')[1];//document.getElementById(id);
	ID.options.length	= 1;
	var pre_no	= el.value.split("/");
	pre_no		= pre_no[1];
	var url	= (this.base_url) ? this.base_url : "../" ;	
	var url = url+"Libs/_php/rankup_teacher_ajax.class.php?mode=area_category&pre_no="+pre_no;
	var myRequest = new Ajax.Request(url, {
		method: 'get',
		onSuccess: function(transport) {
			if(!transport.responseText.match(null)) {
				try {
					var resultData	= transport.responseXML.getElementsByTagName("resultData")[0];

					//Áö¿ª°ü·Ã[  ]
					var areaValue	= resultData.getElementsByTagName("areaValue")[0];
					var areaValue_area	= areaValue.getElementsByTagName("area");	
					ID.options[0] = new Option('ÀüÁö¿ª', '');
					for(var i=0; i<areaValue_area.length; i++) {
						var area	= areaValue_area[i].firstChild.nodeValue;
						var num	= areaValue_area[i].getAttribute('no');
						 ID.options[i+1] = new Option(area, area);
						 if(checkValue && area==checkValue)	ID.options[i+1].selected	= true;
					}
					//ID.appendChild(ID); 
				} catch (e) {
					alert(e.message);
				}
			}
			myRequest = null;
		}
	});
}









/*==========================================
¼±»ý´Ô/Çлý µî·Ï½Ã..
Èñ¸ÁÁö¿ª Ãß°¡¹öÆ° ´©¸£¸é ½ÇÇàÇÏ´Â ÇÔ¼ö.
==========================================*/
RANKUP_TEACHER.prototype.cate_addArea	= function(sample_select, td, mode, checkValue) {

	var cate_value1	= (checkValue) ? checkValue[0] : "";
	var cate_value2	= (checkValue) ? checkValue[1] : "";
	var cate_value3	= (checkValue) ? checkValue[2] : "";
	var url	= (this.base_url) ? this.base_url : "../" ;

	var select1_length	= sample_select.options.length;
	var createSelect		= document.createElement("<select name=\""+mode+"1[]\" hname=\"Èñ¸ÁÁö¿ª\" required style=\"width:80px;\">");
	for(var i=0; i<select1_length; i++) {
		var value	= sample_select[i].value;
		var text		= sample_select[i].text;
		createSelect.options[i]	= new Option(text,value);
		if(cate_value1==value) createSelect.options[i].selected	= true;
	}

	var classObj = this;		
	Event.observe(createSelect, 'change', function() {	
			rankup_teacher.cate_ajax(createSelect);
			rankup_teacher.selectCategory(createSelect,'area');
	});

	var createSelect2		= document.createElement("<select name=\""+mode+"2[]\" style=\"width:80px;\" onChange=\"rankup_teacher.selectCategory(this,'area');\">");
	createSelect2.options[0]	= new Option("ÀüÁö¿ª","");

	var spanAdd1				= document.createElement("span");
	spanAdd1.innerHTML		= "&nbsp;";
	var spanAdd2				= document.createElement("span");
	spanAdd2.innerHTML		= "&nbsp;";
	spanAdd2.innerHTML		= "&nbsp;<a href=\"javascript://\" onClick=\"rankup_teacher.cate_addPlus(this, '"+mode+"', 'del');\"><img src=\""+url+"images/btn_del2.gif\" border=\"0\" align=\"absmiddle\"></a>";

	td.appendChild(createSelect);
	td.appendChild(spanAdd1);
	td.appendChild(createSelect2);
	td.appendChild(spanAdd2);

	//if(cate_value2) {
		rankup_teacher.cate_ajax(createSelect,cate_value2);
	//} else {		
	//}
}
/*==========================================
¼±»ý´Ô/Çлý µî·Ï½Ã..
Èñ¸Á°ú¸ñ Ãß°¡¹öÆ° ´©¸£¸é ½ÇÇàÇÏ´Â ÇÔ¼ö.
==========================================*/
RANKUP_TEACHER.prototype.cate_addLesson	= function(sample_select, td, mode, checkValue) {

	if(checkValue && !checkValue[0] && mode=='add')	return;
	var url	= (this.base_url) ? this.base_url : "../" ;

	var select1_length	= sample_select.options.length;
	var createSelect		= document.createElement("<select name=\""+mode+"[]\" hname=\"Èñ¸Á°ú¸ñ\" required style=\"width:80px;\" onChange=\"rankup_teacher.selectCategory(this,'lesson');\">");
	for(var i=0; i<select1_length; i++) {
		var value	= sample_select[i].value;
		var text		= sample_select[i].text;
		createSelect.options[i]	= new Option(text,value);
		if(checkValue && checkValue[0]==value) createSelect.options[i].selected	= true;
	}

	var spanAdd2				= document.createElement("span");
	spanAdd2.innerHTML		= "&nbsp;<a href=\"javascript://\" onClick=\"rankup_teacher.cate_addPlus(this, '"+mode+"', 'del');\"><img src=\""+url+"images/btn_del2.gif\" border=\"0\" align=\"absmiddle\"></a>";

	td.appendChild(createSelect);
	td.appendChild(spanAdd2);
}


RANKUP_TEACHER.prototype.selectCategory	= function(el, code) {

	switch(code) {
		case "area":
			var area1	= document.getElementsByName("area1[]");
			var area2	= document.getElementsByName("area2[]");
			for(var i=0, check_no=0; i<area1.length; i++, check_no++) {
				if(area1[i]===el.parentNode.getElementsByTagName('select')[0]) {
					if(in_array(area1[i].value+area2[i].value,this.addArea) && el.value) {
						alert("ÀÌ¹Ì ¼±ÅÃÇϽŠÁö¿ªÀÔ´Ï´Ù.");
						this.addArea[i]	 = area1[i].value;
						el.selectedIndex	= 0;
						return;
					} else {
						this.addArea[i]	 = (this.addArea[i] && el.name=="area2[]") ? area1[i].value+area2[i].value : area1[i].value;
						return;
					}
				}
			}
			break;

		case "lesson":
			var lesson	= document.getElementsByName("lesson[]");
			for(var i=0; i<lesson.length; i++) {
				if(lesson[i]===el.parentNode.getElementsByTagName('select')[0]) {
					if(in_array(el.value,this.addSubject)) {
						alert("ÀÌ¹Ì ¼±ÅÃÇϽŠ°ú¸ñÀÔ´Ï´Ù.");
						this.addSubject[i]	= '';
						el.selectedIndex=0;
						return;
					} else {
						this.addSubject[i]	= el.value;
						return;
					}
				}
			}
			break;
	}
}




/*==========================================
Áö¿ª Ãß°¡Çϱâ [ ȸ¿øµî·Ï½Ã Èñ¸ÁÁö¿ª ]
1¹øÀÎÀÚ : µÑ·¯½×ÀÎ div ¾ÆÀ̵ð°ª
2¹øÀÎÀÚ : select1¹ø°ª
3¹øÀÎÀÚ : select2¹ø°ª
==========================================*/
RANKUP_TEACHER.prototype.cate_addPlus	= function(el, mode, code, checkValue) {

	if(checkValue && !checkValue[0] && code=='add')	return;

	//Ä«Å×°í¸® µÑ·¯½×ÀÎ Å×À̺í
	var table_id		= el.parentNode.parentNode.parentNode.parentNode;
	var sample_select	= table_id.getElementsByTagName('select')[0];

	//tr»èÁ¦½Ã »ç¿ë.
	if(code=="del") {
		var obj = el.parentNode.parentNode.parentNode;
		obj.parentNode.removeChild(obj);
		return;
	} else {

		//»ç¿ëÇÒ ¼ö ÀÖ´Â ÃÖ´ë°¹¼ö
		if(this.addCate[mode]<=table_id.rows.length) {
			alert('ÃÖ´ë '+this.addCate[mode]+'±îÁö °¡´ÉÇÕ´Ï´Ù.');
			return;
		}

		//trÇà Ãß°¡Çϴ°÷
		var tr = table_id.insertRow(table_id.rows.length);
		var td = tr.insertCell(0);

		switch(mode) {
			//Áö¿ª Ãß°¡/Á¦°Å ÇÔ¼ö
			case "area":
				rankup_teacher.cate_addArea(sample_select, td, mode, checkValue);
				break;

			//°ú¸ñ Ãß°¡/Á¦°Å ÇÔ¼ö
			case "lesson":
				rankup_teacher.cate_addLesson(sample_select, td, mode, checkValue);
				break;
		}
	}
}





/*=======================================================
Áö¿ª, °ú¸ñ ¼öÁ¤ÇÒ¶§ »ç¿ëÇÏ´Â ÇÔ¼ö
=======================================================*/
//Áö¿ª Ä«Å×°í¸®
RANKUP_TEACHER.prototype.area_func	= function(a_id, area_cate1, area_cate2) {
	var chk1	 = false, chk2=false;
	for(var i=0; i<area_cate1.length; i++)
		if(area_cate1[i])	{		chk1=true; break;	}

	for(var i=0; i<area_cate2.length; i++)
		if(area_cate2[i])	{		chk2=true; break;	}

	if(chk1==true)	 rankup_teacher.cate_addPlus(a_id, 'area', 'add',area_cate1);
	if(chk2==true)	 rankup_teacher.cate_addPlus(a_id, 'area', 'add',area_cate2);

	//Áߺ¹Ã¼Å©Çϱâ À§Çؼ­ ÇÊ¿äÇÑ °ª
	var area1	= document.getElementsByName("area1[]");
	var area2	= document.getElementsByName("area2[]");
	for(var i=0; i<area1.length; i++) {
		this.addArea[i]	= area1[i].value+area2[i].value;
	}
}
//°ú¸ñÄ«Å×°í¸®
RANKUP_TEACHER.prototype.lesson_func	= function(a_id, cate1, cate2) {

	for(var i=0; i<cate1.length; i++) { if(cate1[i]) { chk1=true; break; } }
	for(var i=0; i<cate2.length; i++) { if(cate2[i]) { chk2=true; break; } }	
	  
	rankup_teacher.cate_addPlus(a_id, 'lesson', 'add',cate1);
	rankup_teacher.cate_addPlus(a_id, 'lesson', 'add',cate2);

	//Áߺ¹Ã¼Å©Çϱâ À§Çؼ­ ÇÊ¿äÇÑ °ª
	var lesson	= document.getElementsByName("lesson[]");
	for(var i=0; i<lesson.length; i++) {
		this.addSubject[i]	= lesson[i].value;
	}
}

var rankup_teacher	= new RANKUP_TEACHER;