window.onload = function() {
    // Make left nav column equal in height to main content panel
    var contentHeight = document.getElementById('content').offsetHeight;
    document.getElementById('left-nav-content').style.height = 71 + contentHeight + "px";
}

function OnClientClicked(button, args) {
    if (window.confirm("Are you sure you want to delete these products?")) {
        button.set_autoPostBack(true);
    }
    else {
        button.set_autoPostBack(false);
    }
}