// Get base url
url = document.location.href;
xend = url.lastIndexOf("/") + 1;
var base_url = url.substring(0, xend); 

function ajax_do (url) {
        // Does URL begin with http?
		
        if (url.substring(0, 4) != 'http') {
                url = base_url + url;
        }

        // Create new JS element
        var jsel = document.createElement('SCRIPT');
        jsel.type = 'text/javascript';
        jsel.src = url;

        // Append JS element (therefore executing the 'AJAX' call)
        document.body.appendChild (jsel);
}

function ajax_get (url, el) {
        // Has element been passed as object or id-string?

        if (typeof(el) == 'string') {
                el = document.getElementById(el);
        }

        // Valid el?
        if (el == null) { return false; }

        // Does URL begin with http?
        if (url.substring(0, 4) != 'http') {
                url = base_url + url;
        }

        // Create getfile URL
        getfile_url = base_url + 'getfile.php?url=' + escape(url) + '&el=' + escape(el.id);

        // Do Ajax
        ajax_do (getfile_url);

        return true;
}
function do_picked(file){
	$didlo = document.getElementById('picInput');
	$didlo.value = file;
	set_preview(file);
}
function do_picked_id(file,id){
	$didlo = document.getElementById('picInput');
	$didlo.value = id;
	set_preview(file);
}
function set_preview(thing){
	
	$tgt = document.getElementById('picTgt');
	$inField = document.getElementById('picInput');
	$picker = document.getElementById('imgdiv');
	$picker.style.display = 'none';
	$newPic = thing;
	$tgt.src = '../pictures/' + $newPic;
}