function getqs(keyid) {
	var href = location.href ;
	var sep = keyid + '=' ;
	var val = (href.split(sep, 2))[1] ;
	return unescape(val) ;
}
function qslink(target,keyid) {
	location.href = target + '?' + keyid + '=' + escape(getqs(keyid)) ;
	return false;
}
function setqs(el, keyid) {
	el.value = getqs(keyid) ;
}