function preloader_algemeen(margetop, margelinks, breedte, hoogte, imgmarge) {
    document.write("<style>");
    document.write("#preloader_algemeen{float:left; display:table-cell; vertical-align:middle; position:absolute; z-index:999; margin:" + margetop + "px 0 0 " + margelinks + "px; width: " + breedte + "px; height:" + hoogte + "px; text-align:center; background-color:#eeeeee; border:1px solid #BEBEBE; filter:alpha(opacity=50);-moz-opacity:0.5;opacity: 0.5;}");
    document.write("#preloader_algemeen img{margin:" + imgmarge + "px;}");
    document.write("</style>");
}

function laden_maar() {
    document.getElementById("preloader_algemeen").style.display = "none";
}

window.onload = laden_maar;

function preloaden_laden_maar() {
    document.getElementById("preloader_algemeen").style.display = "block";
}