var d=function(){return window.document.getElementById()};

function db() {
	var arr_browser=[];
	var const_userAgent = navigator.userAgent.toLowerCase();
        arr_browser["opera"] = const_userAgent.indexOf("opera") != -1 ? true : false;
        arr_browser["ie"] = const_userAgent.indexOf("msie") != -1 && (document.all && !arr_browser["opera"]) ? true : false;
        arr_browser["mozilla"] = !arr_browser["ie"] && (!arr_browser["safari"] && (const_userAgent.indexOf("mozilla") != -1 || arr_browser["opera"])) ? true : false;
        arr_browser["mac"] = const_userAgent.indexOf("macintosh") != -1 ? true : false;
	return arr_browser;
}

function bp(pu,pt) {
	var ab=db();
	var d=window.document;
	var pc="To bookmark this page, please press CTRL+D.";
	var mac="To bookmark this page, please press COMMAND+D.";
	var pco="To bookmark this page, please press CTRL+T.";
	var maco="To bookmark this page, please press COMMAND+T.";
	if (d && ab["ie"])
		window.external.AddFavorite(pu,pt);
	else if (ab["mozilla"] && !ab["mac"] && !ab["opera"]) {
		alert(pc);
	}
	else if (!ab["mac"] && ab["opera"]) {
		alert(pco);
	}
	else if (ab["mac"] && !ab["opera"]) {
		alert(mac);
	}
	else if (ab["mac"] && ab["opera"]) {
		alert(maco);
	}
}

function ep(pu,pt) {
        var day=new Date();
        var id=day.getTime();
        var ww=500;
        var wh=300;
        var wl=(screen.width/2)-(ww/2);
        var wt=(screen.height/2)-(wh/2);
        var postcard=window.open("/email?pu="+pu+"&pt="+pt,"postcard","toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+ww+",height="+wh+",left="+wl+",top="+wt);     
}

function ts(inc) {
	if (d) {
		var fs=g("main").style.fontSize;
		if (!fs)
			ns=inc?"13":"11";
		else {
			ns=fs.substring(0, fs.indexOf("px"));
			ns=inc?(ns*1)+1:(ns*1)-1;
			if(ns>16)
				ns=16;
			if(ns<9)
				ns=9;
		}
		g("main").style.fontSize=ns+"px";
	}
}


function setOnOff(it, newURL){
	it.src=newURL;
}