function $(id_elemento) {
	var elemento;
	if(document.getElementById){
		elemento = document.getElementById(id_elemento);
	} else {
		elemento = document.all[id_elemento];
	}
	return elemento;
};

function sendMail(){
	var sendingMail = 1;
	if ( !emailCheck($('email').value) ) { $('email').className = 'inputError'; sendingMail = 0 } else { $('email').className = 'inputok'; }
	if ( $('person').value == '' ) { $('person').className = 'inputError'; sendingMail = 0 } else { $('person').className = 'inputok'; }
	if ( $('company').value == '' ) { $('company').className = 'inputError'; sendingMail = 0 } else { $('company').className = 'inputok'; }
	if ( $('request').value == '' ) { $('request').className = 'inputError'; sendingMail = 0 } else { $('request').className = 'inputok'; }
	if ( !$('privacy').checked ) { $('privacy_label').className = 'labelError'; sendingMail = 0 } else { $('privacy_label').className = 'labelok'; }

	if (sendingMail == 1) { 
		
		var ajax = new sack();
		function whenLoading(){ }
		function whenCompleted(){ 
			//alert(ajax.response);
			switch(lang){
				case "it": alert('Grazie per la richiesta inviataci, vi risponderemo quanto prima.'); break;
				case "en": alert('Thank you for your request to us, we will respond as soon as possible.'); break;
				case "de": alert('Vielen Dank für Ihre Anfrage, wir antworten Ihnen innerhalb kürzester Zeit.'); break;
			}
			$('person').value = '';$('company').value = '';$('email').value = '';$('request').value = '';$('privacy').checked = false;
			pageTracker._trackPageview("/"+lang+"/form-contatto");
		}
		ajax.encVar("email", document.getElementById('email').value);
		ajax.encVar("company", document.getElementById('company').value);
		ajax.encVar("person", document.getElementById('person').value);
		ajax.encVar("request", document.getElementById('request').value);
		ajax.encVar("action", "MAIL");
		ajax.requestFile = baseurl+"/lib/form/proxy.php";
		ajax.method = "POST";
		ajax.onCompletion = whenCompleted;
		ajax.runAJAX();
	}
}


function emailCheck (emailStr) {

	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
		return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
			return false
			}
		}
		return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
		domArr[domArr.length-1].length>3) {
	   return false
	}

	if (len<2) {
	  return false
	}

return true;
}