function browserWindowSize() {
    var browserWinWidth = 0, browserWinHeight = 0;
    if (typeof (window.innerWidth) == 'number') {
        //Non-IE
        browserWinWidth = window.innerWidth;
        browserWinHeight = window.innerHeight;
    } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
        //IE 6+ in 'standards compliant mode'
        browserWinWidth = document.documentElement.clientWidth;
        browserWinHeight = document.documentElement.clientHeight;
    } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
        //IE 4 compatible
        browserWinWidth = document.body.clientWidth;
        browserWinHeight = document.body.clientHeight;
    }
    return { width: browserWinWidth, height: browserWinHeight };
}

function playGame() {
    var windim = browserWindowSize();
    if (windim.width < 980)
        windim.width = 980;
    if (windim.height < 560)
        windim.height = 560;
        
    window.open(baseUrl + 'Pages/The_Search_for_Goldie.aspx', 'Goldie', 'top=0,left=0,width='+windim.width+',height='+windim.height+',location=no,menubar=no,resizable=yes,scrollbars=no,status=no,titlebar=no,toolbar=no');
}