var Search = new Object;
Search._prefix = '';

Search.setArea = function(area) {
	var prefix = Search._prefix;
	if(area == 'null') { area = ''; }
	$(prefix+'search_area').value = area;	
}

Search.go = function(prefix) {
	
	if(!prefix) { var prefix = Search._prefix; }
	
	var area = $(prefix+'search_area').value;
	if($(prefix+'search_typ').selectedIndex) {
		var typ = $(prefix+'search_typ').options[$(prefix+'search_typ').selectedIndex].value;
	} else {
		var typ = $(prefix+'search_typ').value;
	}
	
	if($(prefix+'search_cena')) {
		var cena = $(prefix+'search_cena').options[$(prefix+'search_cena').selectedIndex].value;
	}
		
	var href = '/spa/'+typ;
	if(area) { href += '/area/'+area; }
	if(cena) { href += '/max/'+cena; }
	
	document.location.href=href;

}

function urlencode( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // %          note: info on what encoding functions to use from: http://xkr.us/articles/javascript/encode-compare/
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
                                     
    var histogram = {}, histogram_r = {}, code = 0, tmp_arr = [];
    var ret = str.toString();
    
    // The histogram is identical to the one in urldecode.
    histogram['!']   = '%21';
    histogram['%20'] = '+';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);
    
    for (search in histogram) {
        replace = histogram[search];
        tmp_arr = ret.split(search); // Custom replace
        ret = tmp_arr.join(replace); 
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
    
    return ret;
}