var standart_color;
standart_color = "#000000";

function clean_value(element, value) {
 if (element.value == value) {
  element.value = "";
  element.style.color = standart_color;
 }
}

function restore_value(element, value) {
 if (element.value == "" | element.value == value) {
  element.value = value;
  element.style.color = "#CCCCCC";
 }
}

function update_value(element, value) {
    if (element.value == "" || element.value == value) {
        element.value = value;
        element.style.color = "#CCCCCC";
    }
}

//function desaturate_value(element, value) {if (element.value == value) {standart_color = element.style.color; element.style.color = "#C5C5C5"};}

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            oldonload();
            func();
        };
    }
}