function submitForm(lang)
 { 	
 	var Msg_FirstName  		= lang == 1 ? "Ingrese su nombre" : "Write name";
 	var Msg_LastName 		= lang == 1 ? "Ingrese su apellido" : "Write Lastname";
 	var Msg_Email	  		= lang == 1 ? "Ingrese su E-mail" : "Write E-mail";
 	var Msg_Phone 			= lang == 1 ? "Ingrese su telefono" : "Write phone"; 	
 	var Msg_Country 		= lang == 1 ? "Elija su pais" : "Choose country";
 	var Msg_HowDidYouFindUs = lang == 1 ? "Como nos conocistes" : "How Did You Find Us?";
	var Msg_Comentary		= lang == 1 ? "Ingrese su cometario" : "Write comentary";
	var Msg_InvalidEmail	= lang == 1 ? "E-mail invalido" : "Invalid E-mail";
 	var Msg_City	 		= lang == 1 ? "Ingrese la ciudad" : "Write city";

	if(trim(document.getElementById('con_nombre').value)=='')
	{
		window.alert(Msg_FirstName);
		document.getElementById('con_nombre').focus();
		return;
	}

	if(trim(document.getElementById('con_apellido').value)=='')
	{
		window.alert(Msg_LastName);
		document.getElementById('con_apellido').focus();
		return;
	}

	if ( !checkemail(trim(document.getElementById('con_email').value )))
	{
		window.alert(Msg_InvalidEmail);
		document.getElementById('con_email').focus();
		return;
	}

	if(trim(document.getElementById('con_email').value)=='')
	{
		window.alert(Msg_Email);
		document.getElementById('con_email').focus();
		return;
	}
		
 	if(trim(document.getElementById('con_telefono').value)=='')
	{
		window.alert(Msg_Phone);
		document.getElementById('con_telefono').focus();
		return;
	}
	
	if(trim(document.getElementById('con_pais').value)=='')
	{
		window.alert(Msg_Country);
		document.getElementById('con_pais').focus();
		return;
	}

	if(trim(document.getElementById('con_ciudad').value) == '')
	{
		window.alert(Msg_City);
		document.getElementById('con_ciudad').focus();
		return;
	}

	var myForm = document.getElementById('myForm');
	myForm.action = 'graba_contacto.php';
	myForm.submit();
 }
 
function clearForm()
{ 	
	document.getElementById('con_nombre').value='';
	document.getElementById('con_apellido').value='';
	document.getElementById('con_email').value='';
	document.getElementById('con_telefono').value='';
	document.getElementById('con_pais').selectedIndex=0;
	document.getElementById('con_ciudad').value='';	
	document.getElementById('con_comentario').value='';
	document.getElementById('con_nombre').focus();
}

var nav4 = window.Event ? true : false;
function acceptNumTelefono(evt)
{
	// NOTE: Backspace = 8, Enter = 13, '0' = 48, '9' = 57, '.' = 46
	var key = nav4 ? evt.which : evt.keyCode;
	return (key <= 13 || (key >= 48 && key <= 57) || key == 91 || key == 93 || key == 40 || key == 41);
}

function checkemail(str)
{
	var filter=/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/
	return (filter.test(str))
}

function ltrim(str)
{
	while(""+str.charAt(0)==" "){
		str=str.substring(1,str.length);}
	return str; 
}

function reverse(str)
	{
	var reversedstr = "";
	var strArray;
	strArray = str.split("");
	for(var i = str.length -1 ; i >= 0 ; i--)
	{
		reversedstr += strArray[i];
	}
	return reversedstr;
}

function trim(str)
{
	str = ltrim(str);
	str = reverse(str);
	str = ltrim(str);
	str = reverse(str);
	return str; 
}