function php_urlencode(str) {
	str = escape(str);
	return str.replace(/[*+\/@]|%20/g,
		function (s) {
		switch (s) {
			case "*": s = "%2A"; break;
			case "+": s = "%2B"; break;
			case "/": s = "%2F"; break;
			case "@": s = "%40"; break;
			case "%20": s = "+"; break;
		}
			return s;
		}
	);
}

function submit_search(){
	url = 'http://images.humanspectra.com';
	
	var searchstring = encodeURI(document.getElementById('search-string').value.length > 0 ? document.getElementById('search-string').value : "_");
	var horizontal = document.getElementById('search-horizontal').checked? 1 : 0;
	var vertical = document.getElementById('search-vertical').checked? 1 : 0;
	var panorama = document.getElementById('search-panoramic').checked? 1 : 0;
	var modelreleased = document.getElementById('search-modelreleased').checked? 1 : 0;
	url += "/search/" + searchstring + "/" + panorama + "/" + horizontal + "/" + vertical + "/" + modelreleased + "/";

	document.location = url;
}