var isNav,isIE,isMac;
	
if(navigator.appVersion.indexOf("Mac") != -1) isMac = true;

if (parseInt(navigator.appVersion) >= 4) {
	if (navigator.appName == "Netscape") { 
		isNav=true;
	} else {
		isIE=true;
	}
}

function openblog(id) {
	if((isMac==true)&&(isIE==true))
	{
		mywidth=513;
	}else{
		mywidth=530;
	}
	
	bblog = window.open('bblog.php?id='+id+"&page=0", 'bblog',  'scrollbars=yes,width='+mywidth+',height=1000');
	if(!bblog.opener) bblog.opener = self;
}