function over(img) {
    obj = document.getElementById(img);
    if (obj.src.substr(obj.src.length-6)=="_o.gif") {
        obj.src = obj.src.substr(0,obj.src.length-6) + ".gif";
    } else {
        obj.src = obj.src.substr(0,obj.src.length-4) + "_o.gif"; 
    }
}

function printversion(id) {
        printwindow = window.open("?id="+id+"&a=print","post","scrollbars=yes,height=350,width=400");
        //directories=no,height=350,location=no,menubar=no,personalbar=no,resizable=yes,titlebar=yes,toolbar=no,width=400
}

// kies de juiste CSS toevoeging
with (navigator) {
    if (appName!="Netscape") {
        document.write('<style>#maindiv1,#maindiv2 { height: 100%; } #content { height: 150px;}</style>');
    }
}

function setHoofdmenu() {
    oDiv = document.getElementById('hoofdmenu');
    
    oDiv.style.top = 190-oDiv.offsetHeight
    
    oDiv.style.visibility = 'visible';
}