var w3c=document.getElementById && !document.all;
var ie=document.all;

if (ie||w3c) {
 // déclaration des variables uniquement pour IE vive microsoft ?!!
 var overlay;
 var my_window;
}


function affiche_overlay_windowshare(contentshare,messageok,messageko){
  var contentshare=contentshare;
  var messageok=messageok;
  var messageko=messageko;
	// creation de l'overlay et affichage de l'image
	montreoverlayshare();
	// creation de la fenętre
	montrefenetreshare(contentshare,messageok,messageko);return false;


}


function montreoverlayshare() {
  if (w3c||ie){
	overlay = document.all ? document.all["overlay_general"] : document.getElementById ? document.getElementById("overlay_general") : ""
	overlay.innerHTML = ""; // fixe le code HTML dans l'overlay balise (div)
    overlay.style.visibility = "visible"; // modification du style
	document.body.scroll="no";
  }
}

function isMail(field){
  var email = document.getElementById(field).value;
	return isStringMail(email);
}

function montrefenetreshare(contentshare,messageok,messageko) {
  if (w3c||ie){
    //affichage de la fenetre
	my_window_back = document.all ? document.all['windowback'] : document.getElementById ? document.getElementById('windowback') : ""
    my_window_back.style.visibility = "visible";
	my_window = document.all ? document.all['window'] : document.getElementById ? document.getElementById('window') : ""
    my_window.style.visibility = "visible";

	// affichage du corps de la fenętre (balise iframe)
    my_window = document.all ? document.all['contempwindow'] : document.getElementById ? document.getElementById('contempwindow') : ""
    my_window.style.visibility = "visible";

	contenuformulaire = contentshare;

	my_window.innerHTML=contenuformulaire;
  }
}




function cachetoutshare() {
	if (w3c||ie){

	// masque la fenetre (balise div [window] )
	my_window = parent.document.getElementById('window');
	my_window.style.visibility = "hidden";
	my_window_back = parent.document.getElementById('windowback');
	my_window_back.style.visibility = "hidden";
	// masque le contenu (balise iframe [contempwindow])
	my_window = parent.document.getElementById('contempwindow');
	my_window.style.visibility = "hidden";

	// masque l'overlay (balise div [overlay])
	my_window = document.all ? parent.document.all['overlay_general'] : parent.document.getElementById ? parent.document.getElementById('overlay_general') : ""
	my_window.style.visibility = "hidden";
	document.body.scroll="yes";
	}


}

function test(messageok,messageko){
	if(document.getElementById('friends').elements['friend1'].value=="" || document.getElementById('friends').elements['sender'].value=="" || document.getElementById('friends').elements['senderemail'].value==""){alert("Please complete (*)");}
		else{
			if(isMail('friend1') && (isMail('friend2') || document.getElementById('friends').elements['friend2'].value=="") && (isMail('friend3') || document.getElementById('friends').elements['friend3'].value=="") && (isMail('friend4') || document.getElementById('friends').elements['friend4'].value=="") && (isMail('friend5') || document.getElementById('friends').elements['friend5'].value=="") && (isMail('friend6') || document.getElementById('friends').elements['friend6'].value=="") && (isMail('senderemail') || document.getElementById('friends').elements['senderemail'].value=="")){
				alert(messageok);
				document.getElementById('friends').submit();}
			else{alert(messageko);}}
	document.getElementById('friends').elements['friend1'].focus();
}