Change Div style onclick

Question

I have 2 tabs at the top of a page. When one tab is clicked, I would like that tab to have an \"active\" class and the other tab to have an \"inactive\" class so that the us

Answer 1

Give your tabs a class of "tab"... HTML:

...


...

JS:

function getByClass(_class, elem) {
    var i, result = [], elems = document.getElementsByTagName("div"); //get the elements
   for (i = 0; i < elems.length; i++) {
        if (elems[i].className.indexOf(_class) !== -1) { //if the elements have the class passed in, add it to the result array
            result.push(elems[i]);
        }
    }
    return result;
}
var i, tabs = getByClass("tab", "div"); //get all divs with class tab
for (i = 0; i < tabs.length; i++) { //for each tab...
    tabs[i].onclick = function() { //wire up it's click event...
        //to clear the other tabs...
        var j;
        for(j=0; j < tabs.length; j++) {
           tabs[j].className = tabs[j].className.replace(" active", "");
        }
       this.className += " active"; //where active is a class predefined in the CSS 
    };
}

http://jsfiddle.net/thomas4g/pqMq2/12/