function eggs_color(){
	document.getElementById( 'eggs' ).src = 'images/eggs_copy.jpg';
}
function eggs_bw(){
	document.getElementById( 'eggs' ).src = 'images/eggs_bw.jpg';
}

function ehr_color(){
	document.getElementById( 'ehr' ).src = 'images/ehr3.jpg';
}
function ehr_bw(){
	document.getElementById( 'ehr' ).src = 'images/ehr3_bw.jpg';
}

function cd_color(){
	document.getElementById( 'dance' ).src = 'images/dancer2.jpg';
}
function cd_bw(){
	document.getElementById( 'dance' ).src = 'images/dancer2_bw.jpg';
}

function bed_color(){
	document.getElementById( 'bed' ).src = 'images/bed.jpg';
}
function bed_bw(){
	document.getElementById( 'bed' ).src = 'images/bed_bw.jpg';
}

function listeners_color(){
	document.getElementById( 'listen' ).src = 'images/listeners.jpg';
}
function listeners_bw(){
	document.getElementById( 'listen' ).src = 'images/listeners_bw.jpg';
}

function pp_color(){
	document.getElementById( 'paris' ).src = 'images/paris2.jpg';
}
function pp_bw(){
	document.getElementById( 'paris' ).src = 'images/paris_bw2.jpg';
}