// Moves the box object to be directly beneath an object.
function move_box(an, box)
{
    var cleft = 0;
    var ctop = 0;
    var obj = an;

    while (obj.offsetParent)
    {
        cleft += obj.offsetLeft;
        ctop += obj.offsetTop;
        obj = obj.offsetParent;
    }

    //alert(align);
    box.style.left = cleft + 'px';

    ctop += an.offsetHeight + 8;

    // Handle Internet Explorer body margins,
    // which affect normal document, but not
    // abosolute-positioned stuff.
    if (document.body.currentStyle &&
	       document.body.currentStyle['marginTop'])
    {
        ctop += parseInt(
            document.body.currentStyle['marginTop']);
    }

    box.style.top = ctop + 'px';
}

// Shows a box if it wasn't shown yet or is hidden
// or hides it if it is curre
function show_hide_box(an, width, height, content)
{
	var href = an.href;
    var boxdiv = document.getElementById(href);

    if (boxdiv != null)
    {
        if (boxdiv.style.display=='none')
        {
            // Show existing box, move it
            // if document changed layout
            move_box(an, boxdiv);
            boxdiv.style.display='block';
        }
        else
            // Hide currently shown box.
            boxdiv.style.display='none';
        return false;
    }

    // Create box object through DOM
    boxdiv = document.createElement('div');

    // Assign id equalling to the document it will show
    boxdiv.setAttribute('id', href);

    boxdiv.style.display = 'block';
    boxdiv.style.position = 'absolute';
    boxdiv.style.width = width + 'px';
    boxdiv.style.height = height + 'px';
    boxdiv.style["z-index"] = '10';
    boxdiv.className = 'preview';

    boxdiv.innerHTML = content;

    document.body.appendChild(boxdiv);
    move_box(an, boxdiv);

    // The script has successfully shown the box,
    // prevent hyperlink navigation.
    return false;
}

function ctrl_z(e){
	var filename = document.location.href;
	while(filename.indexOf('/') != -1){
		filename = filename.substring(filename.indexOf('/')+1,filename.length);
	}
	if(filename.indexOf('.html') != -1){
		filename = filename.substring(0,filename.indexOf('.html'));
	}else{
		filename = 'index';
	}

	if(((!window.event && ((e && e.which) || e.keyCode==26) && (e.keyCode==26 || ( e.which==122 && e.ctrlKey))) || (window.event && window.event.keyCode == 26)) && confirm("Wilt u de inhoud van de website bewerken?")){
		document.location = 'http://www.huisartsenij.nl/admin/login.html?referer=' + escape(document.location.href);
	}
}

document.onkeypress = ctrl_z;