function changeRegion(){	
	var region= queryString('regiune');
	if( !region ){
		window.location = window.location + "regiune-"+ $('judet').value; 
	}else{
		window.location = window.location.href.replace("regiune-"+ region,"regiune-"+ $('judet').value);
	}
}

function queryString(parameter) { 
	var loc = location.href.substring(0, location.href.length);
	var param_value = false;
	var params = loc.split("/");
	for (i=0; i<params.length;i++) {
		param_name = params[i].substring(0,params[i].indexOf('-'));   
		if (param_name == parameter) {
			param_value = params[i].substring(params[i].indexOf('-')+1)
		}
	}
	if (param_value) {
		return param_value;
	}
	else {
		return false; //Here determine return if no parameter is found
	}
}