function pSemester(){
	var ds_jsemester = new Ext.data.JsonStore({ //from database
		proxy: new Ext.data.HttpProxy({
			url: BASE_URL + 'data_controller/get_jsemester ',
			method: 'POST'
		}),		
		root: 'data', autoLoad: true, 
		fields: [{ name: "idjnssemester" }, { name: "nmjnssemester" }]
		});
	var StoresObj = new Object({ jsemester: ds_jsemester });
	
	var fields_semester = RH.storeFields('idsemester','kdsemester','nmsemester','deskripsi',
									'idjnssemester','tingkat','nmjnssemester');
	var pageSize = 18;
	var ds_semester = RH.JsonStore({	
        url : BASE_URL + 'semester_controller/get_semester',  
		fields : fields_semester,
		limit: pageSize,
		enableSearch: true,
	});	
	//SEARCH COMPONENT
	var sb_semester = RH.searchComp({
		id : 'sb_semester',
		fields : ['kdsemester:Kode','nmsemester:Nama','tingkat:Tingkat','nmjnssemester:Jenis Semester'],
		selected : 'nmsemester',
		store : ds_semester
	});
    
	// COLUMN MODEL
	var cm_semester = new Ext.grid.ColumnModel([
		new Ext.grid.RowNumberer(), 
		{
			header: RH.h3('ID Semester'),width: 100,
			dataIndex: 'idsemester', 
			sortable: true
		}, {
			header: RH.h3('Kode'),  width: 120,
			dataIndex: 'kdsemester', 
			sortable: true
		}, {
			header: RH.h3('Nama'), width: 120,
			dataIndex: 'nmsemester', 
			sortable: true
		}, {
			header: RH.h3('Tingkat'), width: 120,
			dataIndex: 'tingkat', 
			sortable: true
		}, {
			header: RH.h3('Jenis Semester'), width: 120,
			dataIndex: 'nmjnssemester', 
			sortable: true
		}, {
			header: RH.h3('Deskripsi'), width: 300,
			dataIndex: 'deskripsi', 
			sortable: true
		}, 
			RH.EditColumn(), RH.DeleteColumn()
		]
	);	 
    
	/** THE GRID */       
    var gp_semester = RH.GridPanel_T1({
		ds: ds_semester,
        //title: 'Semester', iconCls: '',
        cm: cm_semester,
        singleSelect: true,
        searchComp: sb_semester,
		allowAdd: true,
		fnAdd: fnAddSemester,
		pageSize: pageSize,
		cellclick: onCellSemester
	});
	
    var fp_semester = RH.GPContainer1({
		title: 'Semester', iconCls:'silk-calendar',
		gridPanel: gp_semester,
	}); SET_PAGE_CONTENT(fp_semester);
/** 
FUNCTIONS
*/
	function onCellSemester(grid, rowIndex, columnIndex, e) {
		var record = grid.getStore().getAt(rowIndex);  // Get the Record
        RH.EditClick(e, function(){fnEditSemester(grid, record)});
        RH.DeleteClick(e, function(){fnDeleteSemester(grid, record)});
    }

	function reloadSemester(){
		ds_semester.reload();
	}
	
	function fnAddSemester(){
		var grid = gp_semester;
		wEntrySemester(false, grid, null, StoresObj);	
	}
	
	function fnEditSemester(grid, record){
		wEntrySemester(true, grid, record, StoresObj);		
	}
	
	function fnDeleteSemester(grid, record){
		var url = BASE_URL + 'semester_controller/delete_semester';
		var params = new Object({
						idsemester	: record.data['idsemester']
					});
		RH.deleteGridRecord(url, params, grid );
	}
}

/**
WIN - FORM ENTRY/EDIT Semester
*/
function wEntrySemester(isUpdate, grid, record, StoresObj){
	var winTitle = (isUpdate)?'Semester (Edit)':'Semester (Entry)';		
/**
FORM ENTRY/EDIT MATA-KULIAH
*/	
	var ds_jsemester = StoresObj.jsemester;
	var semester_form = new Ext.form.FormPanel({
		xtype:'form',
        id: 'frm.semester',
        buttonAlign: 'left',
		labelWidth: 150, labelAlign: 'right',
        bodyStyle: 'padding:10px 3px 3px 5px', // atas, kanan, bawah, kiri
        monitorValid: true,
        height: 300, width: 500,
        layout: 'form', 
		frame: false, 
		defaultType:'textfield',		
		items: [     
		{
            id: 'idsemester', 
            fieldLabel: 'ID Semester',
            width: 150, allowBlank: false,
        },{
            id: 'kdsemester', 
            fieldLabel: 'Kode',
            width: 150, allowBlank: false,
        },{
            id: 'nmsemester', 
            fieldLabel: 'Nama',
            width: 150, allowBlank: false,
        },{
            id: 'tingkat', 
            fieldLabel: 'Tingkat',
            width: 150, allowBlank: false,
        },{
            xtype: 'combo', id: 'h_idjnssemester', 
            fieldLabel: 'Jenis Semester',
			store: ds_jsemester, triggerAction: 'all',
            valueField: 'idjnssemester', displayField: 'nmjnssemester',
            forceSelection: true, submitValue: true, 
            mode: 'local', emptyText:'Pilih...', width: 300,
			allowBlank: false, editable:false,		
        },{
            xtype: 'textarea',
			id: 'deskripsi', 
            fieldLabel: 'Deskripsi',
            width: 300,
		}],
        buttons: [{
            text: 'Simpan', iconCls:'silk-save',
            handler: function() {
                fnSaveThnAkademik();                           
            }
        }, {
            text: 'Kembali', iconCls:'silk-arrow-undo',
            handler: function() {
                wSemester.close();
            }
        }]
    });
		
    var wSemester = new Ext.Window({
        title: winTitle,
        modal: true, closable:false,
        items: [semester_form]
    });

/**
CALL SET FORM AND SHOW THE FORM (WINDOW)
*/
	setSemesterForm(isUpdate, record);
	wSemester.show();

/**
FORM FUNCTIONS
*/	
	function setSemesterForm(isUpdate, record){
		var kdprodi = RH.getCompValue('cb.prodi-matkul', true);
		if(isUpdate){
			if(record != null){
				RH.disableComp('idsemester');
				RH.setCompValue('idsemester', record.data['idsemester']);
				
				RH.setCompValue('kdsemester', record.data['kdsemester']);
				RH.setCompValue('nmsemester', record.data['nmsemester']);
				RH.setCompValue('deskripsi', record.data['deskripsi']);
				RH.setCompValue('tingkat', record.data['tingkat']);
				RH.setCompValue('h_idjnssemester', record.data['idjnssemester']);
				return;
			}
		}
	}
	
	function fnSaveThnAkademik(){
		var idForm = 'frm.semester';
		var sUrl = BASE_URL +'semester_controller/insert_semester';
		var sParams = new Object({
			idsemester		:	RH.getCompValue('idsemester'),
			kdsemester		:	RH.getCompValue('kdsemester'),
			nmsemester		:	RH.getCompValue('nmsemester'),
			deskripsi		:	RH.getCompValue('deskripsi'),
			tingkat			:	RH.getCompValue('tingkat'),
			idjnssemester	:	RH.getCompValue('h_idjnssemester'),
		});
		var msgWait = 'Tunggu, sedang proses menyimpan...';
		var msgSuccess = 'Tambah data berhasil';
		var msgFail = 'Tambah data gagal';
		var msgInvalid = 'Data belum valid (data primer belum terisi)!';
		
		if(isUpdate){
			sUrl = BASE_URL +'semester_controller/update_semester';
			msgSuccess = 'Update data berhasil';
			msgFail = 'Update data gagal';
		}
		
		//call form grid submit function (common function by RH)
		RH.submitGridForm(idForm, sUrl, sParams, grid, wSemester, 
			msgWait, msgSuccess, msgFail, msgInvalid);
	}
				
}