function seourl() {
	var baseDir = '/smooth/';
	var tag = document.getElementById('query').value;
	var opt = document.getElementById('option').value;
	var loc = baseDir + escape(opt);
	if (tag == false) { document.location.href = baseDir; } 
	else {
		loc += '/' + escape(tag) ;
		document.location.href = loc;
	}
}