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The dangers of embedding the notorious “void(0)” JavaScript code in the href attribute of the “a” tag

April 8th, 2009  |  by Knix  |  published in javascript

I recent ran into an interesting IE bug involving the following bit of html code:

<a href="javascript: void(0);" onclick="dosomething();">click me</a>

I honestly did not write this one but I will leave names out of this to protect the innocent =)
The void(0) JavaScript code is usually used to prevent loading or reloading of the page when the user [...]

How to find and access parent nodes via JavaScript

June 26th, 2008  |  by Knix  |  published in javascript

function findParentNode(parentName, childObj) {
var testObj = childObj.parentNode;
var count = 1;
while(testObj.getAttribute(‘name’) != parentName) {
alert(‘My name is ‘ + testObj.getAttribute(‘name’) + ‘. Let\’s try moving up one level to see what we get.’);
[...]

How to dynamically add content to a div and store the content to a cookie via JavaScript

April 14th, 2008  |  by Knix  |  published in javascript

function addContent(divName, content) {
document.getElementById(divName).innerHTML = content;
}
function setCookie(c_name,value,expiredays) {
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ “=” +escape(value)+((expiredays==null) ? “” : “;expires=”+exdate.toGMTString());
}
function getCookie(c_name) {
if (document.cookie.length>0) {
c_start=document.cookie.indexOf(c_name + “=”);
[...]

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