valeurraison = ""
function testraison(radio) {
      	for (var i=0; i<radio.length;i++) {
      		if (radio[i].checked) {
            		valeurraison = radio[i].value
      		}
	}
}

valeurfenetre = "1"
function testfenetre(radio) {
      	for (var i=0; i<radio.length;i++) {
      		if (radio[i].checked) {
            		valeurfenetre = radio[i].value
      		}
	}
}

function chat(the_form) {
	my_form = eval(the_form)
	if (my_form.pseudo.value == "") {alert("Veulliez préicer un pseudo")}
     	 else {
		if (valeurraison == "") {alert("Veulliez préicer la raison de votre visite")}
     		 else {
			if(valeurfenetre == "1"){
   				window.open("", "popup", "height="+Math.round(screen.height)+",width="+Math.round(screen.width)+",menubar='no',toolbar='no',location='no',status='no',scrollbars='no'"); 
   				my_form.target = "popup";
   				document.location.replace("index.php");
			}
			 else{
   				my_form.submit("chat/chat.php");
			}
		}

	}
}