diff --git a/kaform.js.bak b/kaform.js.bak
deleted file mode 100644
index 3edb666..0000000
--- a/kaform.js.bak
+++ /dev/null
@@ -1,225 +0,0 @@
-
-var nextRowId=1;
-
-function renumberTableRows(){
-    var row_no=1;
-    var table = document.getElementById("tabbody");
-    for (var i = 0, row; row = table.rows[i]; i++) {
-	row.cells[0].innerHTML=row_no++;
-    }
-}
-
-function deleteTableRow(rowId){
-    var target = document.getElementById("upload-target"+rowId);
-    var children = target.children;
-
-    // delete all uploaded elements
-    for (var i = 0; i < children.length; i++) {
-	var tmp = children[i].getAttribute("data-id");
-	$K.ajax.post({
-	    url: 'delete.php',
-	    data: 'id='+tmp,
-	    before: function(xhr) {},
-	    success: function(response) {},
-	    error: function(response) {}
-	});
-    }
-    
-
-    // delete the row from table
-    var element = document.getElementById("trow"+rowId);
-    element.parentNode.removeChild(element);
-    renumberTableRows();
-//    alert(rowId);
-    
-}
-
-function addTableRow(){
-
-    var $node = $K.dom('#tabbody');
-    // create a new table row with id
-    var element = document.createElement('tr');
-    element.setAttribute("id", "trow"+nextRowId);
-
-    var e="";
-
-    // add column for position no
-    e += '<td></td>';
-
-    // add coluemn for description
-    e += `<td><textarea name="desc[${nextRowId}]" rows="2"></textarea> </td>`;
-
-    // add column for date
-    e += `<td><input name="date[${nextRowId}]" type="date"/></td>`;
-
-    // add column for num
-    e += `<td><input name="amount[${nextRowId}]" type="num"/></td>`;
-
-    // add column for file upload
-    e+= `
-	<td data-kube="">
-	<form action="">
-	<div class="form-item">
-	<div class="upload"
-    data-kube="upload"
-    data-type="file" data-multiple="true"
-    data-target="#upload-target${nextRowId}"
-    data-url="upload.php" data-url-remove="delete.php"
-    data-progress="true">
-	</div>
-	<div id="upload-target${nextRowId}" class="upload-target"></div>
-	</div>
-	</form>
-	
-    </td>
-	`;
-    // add delete bnutton
-    e +=
-	`<td><span
-    onclick="deleteTableRow(${nextRowId})"
-    class="close is-large">
-	</span></td>`;
-    
-    
-    $node.append(element);
-    element.innerHTML=(e);
-    renumberTableRows();
-    nextRowId++;
-}
-
-
-function submitTable(){
-    alert("submit");
-
-    var obj;
-    
-    var table = document.getElementById("tabbody");
-    for (var i = 0, row; row = table.rows[i]; i++) {
-	console.log(row.cells[1]);
-//	var n = row.cells[1].value;
-//	alert(n);
-    }
-    
-
-    
-}
-
-
-$K.add('module','kaform', {
-    init: function(app,context){
-	this.app = app;
-      
-	// getting context and the module element
-	this.context = context;
-	this.$element = context.getElement();
-    },
-
-    hello: function(){
-	alert ("hello function of kaform");
-    },
-    
-    start: function()
-    {
-	
-	/*this.$element.on('keydown.kube.editable', this._hui.bind(this));
-          this.$element.on('paste.kube.editable', this._hui.bind(this));
-          this.$element.on('blur.kube.editable', this._hui.bind(this));
-	*/			
-
-//	alert(this.$element);
-//	this.$element.on('click', this.addRow.bind(this));
-	this._build();
-    },		
-
-    addRow: function() 
-    {
-	
-	var $node = $K.dom('#tabbody');
-	// create a new table row with id
-	var element = document.createElement('tr');
-	element.setAttribute("id", "trow"+nextRowId);
-
-	var e="";
-
-	// add column for position no
-	e += '<td></td>';
-
-	// add coluemn for description
-	e += '<td><textarea rows="2"></textarea> </td>';
-
-	// add column for date
-	e += '<td style="overflow:visible;"><input type="date"/></td>';
-
-	// add column for num
-	e += '<td style="overflow:visible;"><input type="num"/></td>';
-
-	// add column for file upload
-
-	e+= `
-	    <td data-kube="">
-	    <form action="">
-	    <div class="form-item">
-	    <div class="upload"
-	data-kube="upload"
-	data-type="file" data-multiple="true"
-	data-target="#upload-target${nextRowId}"
-	data-url="upload.php" data-url-remove="delete.php"
-	data-progress="true">
-	    </div>
-	    <div id="upload-target${nextRowId}" class="upload-target"></div>
-	    </div>
-	    </form>
-   
-	    </td>
-	`;
-	// add delete bnutton
-	e +=
-	    `<td><span
-
-	onclick="deleteTableRow('trow${nextTableRow}'"
-	class="close is-large">
-	    </span></td>`;
-		
-	$node.append(element);
-	element.innerHTML=(e);
-	renumberTableRows();
-	nextRowId++;
-
-	
-    },
-
-    // private
-    _build: function()
-    {
-
-    },
-    onmessage: {
-	alert: {
-	    closed: function(sender)
-	    {
-		alert(sender);
-		// caught
-	    }
-        }
-    }
-});
-
-
-// startup is here
-
-$K.init({
-    observer: true
-});
-
-
-// on startup clear session on server
-$K.ajax.get({
-    url: 'clear.php',
-    data: '', // or key=value object
-    before: function(xhr) {},
-    success: function(response) {},
-    error: function(response) {}
-});
-
-// add on table row
-addTableRow();