var tagline='I build things: furniture, software, reasoned arguments...<BR>To learn more, click a persona below.';
var pbg01='#eeeeee'; var pbg02='#eeeeee'; var pbg03='#eeeeee';
var pbg04='#eeeeee'; var pbg05='#eeeeee'; var pbg06='#eeeeee';

function changeBGImage() {
	var value=Math.floor(Math.random()*12);
	if (value == 1 || value == 3 || value == 5 || value == 7 || value == 9 || value == 11 ) { value = value-1; }
	if (value < 9) { value = value+2; } else { value = 0; }
	//if (value < 11) { value = value+1; } else { value = 0; }
	pbg01='#eeeeee'; pbg02='#eeeeee'; pbg03='#eeeeee'; 
	pbg04='#eeeeee'; pbg05='#eeeeee'; pbg06='#eeeeee';
	document.getElementById('caption00').style.visibility='hidden';
	document.getElementById('caption01').style.visibility='hidden';
	document.getElementById('caption03').style.visibility='hidden';
	document.getElementById('caption05').style.visibility='hidden';
	document.getElementById('caption07').style.visibility='hidden';
	document.getElementById('caption09').style.visibility='hidden';
	document.getElementById('caption11').style.visibility='hidden';	
	document.getElementById('persona01').style.backgroundColor='#eeeeee';
	document.getElementById('persona02').style.backgroundColor='#eeeeee';
	document.getElementById('persona03').style.backgroundColor='#eeeeee';
	document.getElementById('persona04').style.backgroundColor='#eeeeee';
	document.getElementById('persona05').style.backgroundColor='#eeeeee';
	document.getElementById('persona06').style.backgroundColor='#eeeeee';
	document.getElementById('imgcred').innerHTML="";
 	document.getElementById('background').style.background='url(images/front/'+value+'.jpg)';
	if (value == 1) {
		pbg01='#ff0000';
		document.getElementById('caption01').style.visibility='visible';
		document.getElementById('persona01').style.backgroundColor=pbg01;
	} else if (value == 3) {
		pbg02='#ff4500';
		document.getElementById('caption03').style.visibility='visible';
		document.getElementById('persona02').style.backgroundColor=pbg02;
	} else if (value == 5) {
		pbg03='#ffd700';
		document.getElementById('caption05').style.visibility='visible';
		document.getElementById('persona03').style.backgroundColor=pbg03;
	} else if (value == 7) {
		pbg04='#9acd32';
		document.getElementById('caption07').style.visibility='visible';
		document.getElementById('persona04').style.backgroundColor=pbg04;
	} else if (value == 9) {
		pbg05='#48d1cc';
		document.getElementById('caption09').style.visibility='visible';
		document.getElementById('caption09').style.display='block';
		document.getElementById('persona05').style.backgroundColor=pbg05;
	} else if (value == 11) {
		pbg06='#dda0dd';
		document.getElementById('caption11').style.visibility='visible';	
		document.getElementById('persona06').style.backgroundColor=pbg06;
	} else {
		document.getElementById('caption00').style.visibility='visible';
		if (value == 0) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:Saturn-cassini-March-27-2004.jpg\' class=footer target=_image>Saturn, Cassini space probe<\/a>";
		} else if (value == 2) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:M51_Hubble_Remix.jpg\' class=footer target=_image>Whirlpool Galaxy (M51), Hubble Space Telescope<\/a>";
		} else if (value == 4) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:Great_Red_Spot_From_Voyager_1.jpg\' class=footer target=_image>Jupiter's Great Red Spot, Voyager 1 space probe<\/a>";
		} else if (value == 6) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:M104_ngc4594_sombrero_galaxy_hi-res.jpg\' class=footer target=_image>Sombrero Galaxy (M10), Hubble Space Telescope<\/a>";
		} else if (value == 8) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:Abell1689_HST_2003-01-a-1280_wallpaper.jpg\' class=footer target=_image>Galaxy Cluster Abell 1689, Hubble Space Telescope<\/a>";
		} else if (value == 10) {
			document.getElementById('imgcred').innerHTML="Photo Credit: <a href=\'http://commons.wikimedia.org/wiki/File:Omega_Nebula.jpg\' class=footer target=_image>Omega Nebula, Hubble Space Telescope<\/a>";
		}
	}	
}

function wave(){
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);
//	if (browser == "Microsoft Internet Explorer" && version < 7) {
//		document.location.href='/error/chromeframe.html';
//	}
}