function Is() {
    var sysex = navigator.appVersion;
    var agent = navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);
    this.minorIE = parseFloat(navigator.appVersion.substring(navigator.appVersion.indexOf("MSIE")+4,navigator.appVersion.indexOf(".",navigator.appVersion.indexOf("MSIE")+1)+2));
    this.ns = ((agent.indexOf("mozilla")!=-1) && ((agent.indexOf("spoofer")==-1) && (agent.indexOf("compatible") == -1)));
    this.ns4 = (this.ns && (this.major == 4));
    this.ns5 = (this.ns && (this.major >= 5));
    this.ope = (agent.indexOf("opera") != -1);
    this.ope4 = (this.ope && (this.major >= 4));
    this.ie = (agent.indexOf("msie") != -1 && !(this.ope));
    this.ie4 = (this.ie && !(this.ope) && (this.major >= 4));
    this.ie50 = (this.ie && !(this.ope) && (this.minorIE == 5));
    this.win = (sysex.indexOf("Win")!=-1);
    this.nt = (sysex.indexOf("NT")!=-1);
    this.mac = (sysex.indexOf("Mac")!=-1);
}

function writeIntoPage(msg) {
    var is = new Is();
    if(is.ie50 && (is.win || is.nt)) {
        document.write(msg);
    } else { if (is.ns4 || is.ns5) { document.open(); }
        document.write(msg);
        if (is.ns4 || is.ns5) { document.close(); }
    }
}

function getEmailNWrite(nom, domain, classname) {
    var msg = "<a "+(typeof classname!='undefined'?"class=\""+classname+"\" ":"")+"href=\"mailto:"+nom+"@"+domain+"\">";
    msg = msg+nom+"@"+domain+"</a>";
    writeIntoPage(msg);
}