function ValidateForm4(){	
			var flag = true;
			var message = 'Por favor, rellene todos los campos obligatorios!!';
			var showcheck = -1;var showcheck = http.responseText;				if (showcheck=='0') {
					message = 'Código de verificación no es correcto (*)';
				  	flag = false;
				}
				
			
			if (document.ContactForm4.field12.value.length==0){
			  	flag = false;
			} 

			if (document.ContactForm4.field13.value.length==0){
			  	flag = false;
			} 

			if (document.ContactForm4.field14.value.length==0){
			  	flag = false;
			} 

			if (document.ContactForm4.field15.value.length==0){
			  	flag = false;
			} 
    if (!document.ContactForm4.field14.value.match(/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i)) {
        flag = false;
        message += '\n"Email" no es válido!';
    }		
			if (flag == false) {
				alert(message);
			} else {
				document.ContactForm4.submit();
			}
					
			
		}function createRequestObject(){
	try	{
		xmlhttp = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
	}	catch(e)	{
		alert('Sorry, but your browser doesn\'t support XMLHttpRequest.');
	}
	return xmlhttp;
}

var http = createRequestObject();

function ValidateResult4() {
    if(http.readyState == 4)	{
        ValidateForm4();
    }
}

function CheckForm4() {
    	var captchacheck = document.ContactForm4.captchacode.value;
	var captchasalt = document.ContactForm4.captchacodesalt.value;
	var url = '/mail/captcha-process.php?captcha=' + captchacheck + '&captchasalt=' + captchasalt;
	http.open('GET', url, true);
	http.onreadystatechange = ValidateResult4;
	http.send(null);
        
}