function fbs_click() {
	u=location.href;
	t=document.title;
	window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');
	return false;
}

function showHide(id) {
    var elem = document.getElementById(id);

    if (elem.style.display == 'none') {
        elem.style.display = 'block';
    } else {
        elem.style.display = 'none';
    }
}

function hide(id) {
    var elem = document.getElementById(id).style.display = 'none';;
}

function show(id) {
    var elem = document.getElementById(id).style.display = 'block';;
}

function randomSet(flag) {
    var elem = document.getElementById('orderField');
	if (flag == 'si') {
        elem.value = 'random';
        hide('orderDiv');
	} else {
        elem.value = '';
        show('orderDiv');
	}
}

function randomInit() {
    var orderValue = document.getElementById('orderField').value;
	var radioElem;
    if (orderValue == 'random') {
        radioElem = document.getElementById('randomOrderSi');
        radioElem.checked = 'checked';
        radioElem = document.getElementById('randomOrderNo');
        radioElem.checked = null;
        hide('orderDiv');
    } else {
        radioElem = document.getElementById('randomOrderNo');
        radioElem.checked = 'checked';
        radioElem = document.getElementById('randomOrderSi');
        radioElem.checked = null;
        show('orderDiv');
    }
}