var DefiChat = {
	urlChat: 'http://' + HTTP_HOST + '/defichat/football.php?nick=',
	pseudo: null,
	open: function() {
		if (this.pseudo == null || (this.pseudo.length > 0 && this.pseudo == 'guest')) {
			this.pseudo = prompt("Tout le chat sur http://www.defichat.com\nEntrez votre pseudo pour discuter");
		}
		if (!this.pseudo || this.pseudo.length<=0) return;
		var i=0
		while (i!=-1) {
			i=this.pseudo.indexOf(' ',i);
			if (i>=0) {
				this.pseudo=this.pseudo.substring(0,i)+'_'+this.pseudo.substring(i+1);
				i+=1;
			}
		}
		url = this.urlChat + escape(this.pseudo);
		window.open(url, 'DefifootChat', '');
	}
}