JS errors when i am running My Application

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Hi,

When i am running my Web Application, in some pages it is giving an Exception as htmlfile invalid argument and it is showing a error in js file in the code as mentioned here

XML

appendElementToFormOrBody: function(element) {
        /// <summary>
        /// Tries to append an element to the current form. If no form exists, the element will be appended to the body element.
        /// </summary>
        /// <param name="element" type="Object">The element to append.</param>
        if (document.forms && document.forms[0]) {
            document.forms[0].appendChild(element);
        } else {
            document.body.appendChild(element);
        }
    }

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I need help in this issue..

Posted 17-Oct-11 22:43pm

B Prasun Reddy

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davidshenba · Answer 1 · 2011-10-18T00:21:00

I think the element variable is not declared/initialized properly with a HTML DOM object. Only HTML DOM objects can be passed in to the appendChild method.

I think if you do like below, it will work.

JavaScript

var element = document.getElementsByName("element")[0];

Here is a crude code doing the same. I have tested it in both IE8 and Firefox.

HTML

<html>
<head>
</head>
<script>
function myFunction() {
	var myElem = document.getElementsByName("testElem")[0];
	myElem.value += "test ";
	var p = document.createElement("p");
	p.innerHTML = "test test test"
	if (document.forms && document.forms[0]) {
	   document.forms[0].appendChild(myElem);
	   document.forms[0].appendChild(p);
	} 
	else {
	   document.body.appendChild(myElem);
	   document.body.appendChild(p);
	}
}
</script>
<body>
<form name="myForm">
<input type="text" name="testElem" />
test
</form>
</body>
</html>