window.onLoad = prepareLinks;
function prepareLinks() {
    var links = document.getElementsByTagName("a");
    for (var i=0; i <links.length; i++) {
        if (links[i].classname == "popup") {
            links[i].onclick = function() {
                popUp(this.getAttribute("href"));
                return false;
            }
        }
    }
}

function popUp(winURL) {
    window.open(winURL,"popup","width=698, scrollbars=1");
}

function popUp2(winURL) {
    window.open(winURL,"popup","width=620, scrollbars=1");
}

function popUp3(winURL) {
    window.open(winURL,"popup","width=690, height=300, scrollbars=1");
}

function closePopUp () {
    this.close()
}