var OS = 'Win';
var version = "n";
browserVer=navigator.appVersion;
App = navigator.appName;
var Version=browserVer.substring(0,1);
var posOS = navigator.appVersion.indexOf('Mac');
var posOS2 = navigator.appVersion.indexOf('Win');
if (posOS >= 0) OS = 'Mac';
if ((posOS < 0) && (posOS2 >= 0)) OS = 'Win';
if (App == "Netscape" && Version >= 3) version = "n3";

function check_email(value) {
    email_type = /^[a-z0-9][a-z0-9_\.-]*@[a-z0-9][a-z0-9_\.-]*\.([a-z]{2}|com|org|net|mil|gov|edu|biz|info|name)$/i;
    if (!email_type.test(value)) {
        return false;
    } else {
        return true;
    } 
}

function openwin(name,myname,mywidth,myheight,mytool,mydir,mystatus,myscroll,myresize,mymenu) {
	mytop=Math.floor((screen.height/2) - (myheight/2));
	myleft=Math.floor((screen.width/2) - (mywidth/2));
	if (version != "n3" && OS != 'Mac') debute = window.open(name,"vote","toolbar="+mytool+",width="+mywidth+",height="+myheight+",directories="+mydir+",status="+mystatus+",scrollbars="+myscroll+",top="+mytop+",left="+myleft+",resizable="+myresize+",menubar="+mymenu)
	if (OS == 'Mac') debute = window.open(name,myname,"toolbar="+mytool+",width="+mywidth+",height="+myheight+",directories="+mydir+",status="+mystatus+",scrollbars="+myscroll+",top="+mytop+",left="+myleft+",resizable="+myresize+",menubar="+mymenu)
	if (version == "n3") {
		debute = window.open(name,myname,"toolbar="+mytool+",width="+mywidth+",height="+myheight+",directories="+mydir+",status="+mystatus+",scrollbars="+myscroll+",top="+mytop+",left="+myleft+",resizable="+myresize+",menubar="+mymenu)
		debute.focus();
	}
}

function popup(myurl,mywidth,myheight) {
	openwin(myurl,"popup",mywidth,myheight,0,0,0,1,0,0);
}


function EmptyField() {
	if (document.formLogin.pseudo.value == "Pseudo") {
		document.formLogin.pseudo.value="";
	}
	if (document.formLogin.password.value == "Mot de passe") {
		document.formLogin.password.value="";
	}

}


function updateFriend(friend) {
	document.formFriend.friend.value = friend;
	document.formFriend.submit();
}

function updateTrack(track) {
	document.formTrack.track.value = track;
	document.formTrack.submit();
}

function confirmdelete(myurl) {
	userInput = confirm('Etes-vous certain\nde vouloir supprimer ce message ?');
	if (userInput != '' && userInput != null) {
		document.location.href=myurl;
	}
}

function updateBlock(block) {
	document.formRegister.block.value = block;
	document.formRegister.submit();
}

function check_search() {
	if (document.formSearch.search_string.value.length < 2) {
		alert('Désolé, mais la recherche doit contenir au moins 2 caractères.');
	}else{
		document.formSearch.submit();
	}
}

function noenter() {
	return !(window.event && window.event.keyCode == 13); 
}

function confirmmessagedelete(myurl) {
	userInput = confirm('Es-tu sûr(e) de vouloir supprimer ce message ?');
	if (userInput != '' && userInput != null) {
		document.location.href=myurl;
	}
}

function confirmuserbanned(myurl) {
	userInput = confirm('Es-tu sûr(e) de vouloir bannir cet utilisateur ?');
	if (userInput != '' && userInput != null) {
		document.location.href=myurl;
	}
}

function confirmselection() {
	var selection=document.selection;
	var total = 0;
	selection.select.value = "";
	if(selection.message.length!=undefined) {
		for (var i = 0; i < selection.message.length; i++) {
			if (selection.message[i].checked == true) {
				total += 1;
				selection.select.value += (selection.select.value.length==0) ? selection.message[i].value : ","+selection.message[i].value;
			}
		}
	} else {
		if (selection.message.checked == true) {
			total = 1;
			selection.select.value = selection.message.value;
		}
	}
	if(total==0) {
		alert("Tu dois au moins selectionner un message !");
	} else {
		userInput = confirm('Es-tu sûr(e) de vouloir supprimer les messages sélectionnés ?');
		if (userInput != '' && userInput != null) {
			selection.submit();
		}
	}
}