function Change(c){
    eventSource = event.srcElement

    if (eventSource.tagName=="TR" || eventSource.tagName=="TABLE") {
        return;
    }

    while(eventSource.tagName!="TD") {
        eventSource=eventSource.parentElement;
    }

    eventSource.style.backgroundColor = c;
}

function Reset(c){
    eventSource.style.backgroundColor = c;
}