/* --------------------------------------------------------
    Function:	urlencode()
    Use for:	same behaviour as php's urlencode
    Params:	@str
   -------------------------------------------------------- */

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();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // 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];
        ret = replacer(search, replace, ret) // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
    
    return ret;
}

/* --------------------------------------------------------
    Function:	verifyphonestring()
    Use for:	checks if phone number search is in format
    		999 99 99 99 - or - 99 999 99 99
    		and if length isn't over 12
    Params:	@field
   -------------------------------------------------------- */
   
function verifyphonestring(field) {

    // Set some vars
    var str = field.value;
    var error_flag = false;
    
    // Verify length first
    if (str.length != 12) {
    	error_flag = true;
    }
    
    // Regexp for 999 99 99 99 - or - 99 999 99 99 phone format
    var es_phone_regexp = /^([0-9]{2,3}) ([0-9]{2,3}) ([0-9]{2}) ([0-9]{2})$/;
    if ( !str.match(es_phone_regexp) ) {
		error_flag = true;
    }
    
    // Verify if there was an error
    if (error_flag) {
        alert('Por favor, introduzca el número de teléfono en formato de XXX XX XX XX o XX XXX XX XX');
        field.focus();
        return false;
    }
	
    return true;
}