Matt Matt - 4 months ago 13
Javascript Question

creating input field for html form... but adding a 'label' for it as well?

I have an html form. When you click the button, a javascript function adds a new field. I'm trying to have the function also add a 'label' for the field as well.

I've tried using document.createElement("LABEL"), but that doesn't let me change the innerHtml (or maybe I'm doing it wrong..), nor add a closing

Here is my code. Thanks!



var instance = 2;

function newTextBox(element)
{
instance++;
// Create new input field
var newInput = document.createElement("INPUT");
newInput.id = "text" + instance;
newInput.name = "text" + instance;
newInput.type = "text";
instance++;

document.body.insertBefore(document.createElement("BR"), element);
document.body.insertBefore(newInput, element);

}
</script>
</head>


<body>
<LABEL for="text1">First name: </LABEL>
<input id="text1" type="text" name="text1">
<LABEL for="text2">Last name: </LABEL>
<input id="text2" type="text" name="text2">



<input type="button" id="btnAdd" value="New text box" onclick="newTextBox(this);" />
</body>



Answer
   function newTextBox(element)
            {               
                    instance++; 
                    // Create new input field
                    var newInput = document.createElement("INPUT");
                    newInput.id = "text" + instance;
                    newInput.name = "text" + instance;
                    newInput.type = "text";

                    var label = document.createElement("Label");

                    label.htmlFor = "text" + instance;
                    label.innerHTML="Hello";
                    instance++; 

                    document.body.insertBefore(document.createElement("BR"), element);
                    document.body.insertBefore(newInput,element);
                    document.body.insertBefore(label, newInput);

Note that for attribute of the label tag, corresponds to the property htmlFor fo the label object in javascript