var _=function(obj,route){
	if(!obj) return null;
	if(typeof obj=="string" && document.getElementById) obj=document.getElementById(obj);
	if(obj) return obj;
	else return null;
};

// check fields in contact form
function check_empty_fields(field_id_list) {

	var is_error = 0;
	var i=0;
	for(i in field_id_list)
	{
		object = _(field_id_list[i]);
		if(object.value=="")
		{
			is_error = is_error + 1;
			object.parentNode.className = "error_mes";
		}
		else
		{
			object.parentNode.className = "";
		}
	}
	
	if (is_error)
	{
		return false;
	}
	else
	{
		return true;
	}
}

function init_mail(id){
	_(id).innerHTML=_(id).lang+"@"+_(id).innerHTML;
	_(id).href="mailto:"+_(id).innerHTML;
}