function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "','toolbar=0,scrollbars=0,location=0,statusbar=1,menubar=0,resizable=0,width=600,height=270');")
}

document.write("<a href=javascript:popUp('http://www.escradio.com/player/')><img src='http://www.escradio.com/player/button.gif' border='0' alt='Click here to listen to escradio.com!'></a>")