function submitCancel() 
{
	document.form.email.value ="";
	document.form.subject.value ="";
	document.form.message.value ="";		
}

function submitContact() 
{
	 if (document.form.nom.value == "" ) {	
	alert("Entrez votre nom")
	//document.form.subject.focus()
	return false
	} else if (!checkMail(document.form.email.value)) { 	
	alert("Entrez votre email"); 
	//document.form.email.focus()
	 return false
	}	else if (document.form.message.value == "" ) { 	
	alert("Entrez un message");
	//document.form.message.focus();
	return false
	}	else {	
	return true
	}
}

function checkMail (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) {
 	//alert("Email address seems incorrect (check @ and .'s)")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

if (user.match(userPat)==null) {  
    //alert("The username doesn't seem to be valid.")
    return false
}

var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {   
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	       // alert("Destination IP address is invalid!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	//alert("The domain name doesn't seem to be valid.")
    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) {
   // the address must end in a two letter or three letter word.
  // alert("The address must end in a three-letter domain, or two letter country.")
   return false
}

if (len<2) {
   var errStr="This address is missing a hostname!"
  // alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true
}