browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
condition = !(( (browserName.indexOf("Explorer") >=0 ) && (browserVer < 4) ) ||  ((browserName.indexOf("Netscape") >=0 ) && (browserVer < 2) ) ) ; 
if (condition == true  )
    CanAnimate = true;
else
    CanAnimate = false;
function openchild(thisurl){
if ( CanAnimate ){ 
        msgWindow=window.open( '' ,'subwindow','toolbar=no,location=no,directories=no,status=no,scrollbars=no,menubar=no,resizable=no,width=410,height=345');
        msgWindow.focus();
        msgWindow.location.href = thisurl;
}
else {
        msgWindow=window.open( thisurl,'subwindow','toolbar=no,location=no,directories=no,status=no,scrollbars=no,menubar=no,resizable=no,width=410,height=345');
}       
}