function change_metric(metric, reload){//cria o cookie com o metric selecionado   map_metric_c
	set_cookie("metric",metric,90);
	if (reload==true){
		window.location.reload();
		return false;
	}else{
		if (metric=='f') {
			document.getElementById("map_metric_c").className='';
			document.getElementById("map_metric_f").className='on';
		}else{
			document.getElementById("map_metric_c").className='on';
			document.getElementById("map_metric_f").className='';
		}
	}
	return false;
}

function search(txt, home){

	var url=server_url+"search.php?q="+escape(txt)+(home==true?"&h=t":"")+def_user();
	request_JSON(url,"search");
	box_search();
	return false;
}


function request_JSON(url,funct){
	var head = document.getElementsByTagName('head').item(0)
	var scriptTag = document.getElementById('loadScript_'+funct);
	if(scriptTag) head.removeChild(scriptTag);
	script = document.createElement('script');
	script.src = url;
	script.type = 'text/javascript';
	script.id = 'loadScript_'+funct;
	head.appendChild(script)
}

function def_user(){
	return "&lang="+user_lang+"&metric="+select_metric+"";
}