var testresults

function checkemail(idElement)
{
	var invalidcheck = 0;
	var str = document.getElementById(idElement).value
	var regexp = new RegExp("^[a-zA-Z0-9_\\-\\.]{3,}@[a-zA-Z0-9\\-_]{2,}\\.[a-zA-Z]{2,4}$", "g");
	if(!regexp.test(str)) 
	{
		document.getElementById(idElement).style.backgroundColor = '#FFAEAE';
		return false;
	}
	document.getElementById(idElement).style.backgroundColor = '#FFFFFF';
	return true;
}

function checkTxtEmpty(idElement)
{
	if (document.getElementById(idElement).value != "")
	{
		document.getElementById(idElement).style.backgroundColor = '#FFFFFF';
		return true
	}
	else
	{
		document.getElementById(idElement).style.backgroundColor = '#FFAEAE';
		return false
	}
}

function checkall()
{
	nom_exp = checkTxtEmpty('nom_exp');
	email_exp = checkemail('email_exp');
	email_dest = checkemail('email_dest');
	message_exp = checkTxtEmpty('msg_exp');
	
	if (!(nom_exp && email_exp && email_dest && message_exp))
	{
		document.getElementById('erreursaisie').style.visibility = 'visible';
		return false ;
	}
	else
	{	
		return true;
	}
}