function getParams() {
	var idx = document.URL.indexOf('?');
	var params = new Array();
	if (idx != -1) {
		var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
		for (var i=0; i<pairs.length; i++) {
			nameVal = pairs[i].split('=');
			stringa = nameVal[1];
			nameVal[1] = ''
			for (var k=0; k<=stringa.length-1; k++) {
  				a = stringa.substring(k,k+1);
  				if (a == "+") { a = " "; }
  				nameVal[1] = nameVal[1] + a;
			}
			params[nameVal[0]] = nameVal[1];
   		}
	}
	return params;
}
params = getParams();