function roll(me,state) {
	document.getElementById(me).setAttribute('src',state);
	}
	
function pop(url,nom,dem) {
	window.open(url,nom,dem)
	}	
	
	
	


// preload

var commOver= new Image(); commOver.src='images/nav-commercial_over.gif';
var resOver= new Image(); resOver.src='images/nav-residential_over.gif';
var furnOver= new Image(); furnOver.src='images/nav-furniture_over.gif';
var projOver= new Image(); projOver.src='images/nav-projects_over.gif';
var pubOver= new Image(); pubOver.src='images/nav-publications_over.gif';
var aboutOver= new Image(); aboutOver.src='images/nav-about_over.gif';
var linksOver= new Image(); linksOver.src='images/nav-links_over.gif';
var contactOver= new Image(); contactOver.src='images/nav-contact_over.gif';


var credOver= new Image(); credOver.src='images/nav-credits_over.gif';



var readOver= new Image(); readOver.src='images/button-read_over.gif';
var readOff= new Image(); readOff.src='images/button-read.gif';
var readOn= new Image(); readOn.src='images/button-read_on.gif';



//
function changeNode(subheader) {
document.getElementById('subhead').firstChild.nodeValue=subheader;
}

function setAtr(state) {
document.getElementById('read').setAttribute('src',state);
}