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//change "Click me: + count" : count add 1
function myHandler(e) {
    var src, parts;
    // get event and source element 
    e = e || window.event;
    src = e.target || e.srcElement;
    // actual work: update label
    parts = src.innerHTML.split(": ");
    parts[1] = parseInt(parts[1], 10) + 1;
    src.innerHTML = parts[0] + ": " + parts[1];
    // no bubble
    if (typeof e.stopPropagation === "function") {
        e.stopPropagation();
    }
    if (typeof e.cancelBubble !== "undefined") {
        e.cancelBubble = true;
    }
    // prevent default action
    if (typeof e.preventDefault === "function") {
        e.preventDefault();
    }
    if (typeof e.returnValue !== "undefined") {
        e.returnValue = false;
    }
}


var b = document.getElementById('clickme');
if (document.addEventListener) { // W3C
    b.addEventListener('click', myHandler, false);
} else if (document.attachEvent) { // IE 
    b.attachEvent('onclick', myHandler);
} else { // last resort
    b.onclick = myHandler;
}