var	imageName;

if (document.images)
	{	
		aluminum_off = new Image(197,19);												aluminum_off.src = "images/fabrication_bar/aluminum_off.gif";
		aluminum_on = new Image(197,19);												aluminum_on.src = "images/fabrication_bar/aluminum_on.gif";
		
		dollies_racks_off = new Image(197,19);									dollies_racks_off.src = "images/fabrication_bar/dollies_racks_off.gif";
		dollies_racks_on = new Image(197,19);										dollies_racks_on.src = "images/fabrication_bar/dollies_racks_on.gif";
		
		fabrication_handrails_off = new Image(197,19);					fabrication_handrails_off.src = "images/fabrication_bar/fabrication_handrails_off.gif";
		fabrication_handrails_on = new Image(197,19);						fabrication_handrails_on.src = "images/fabrication_bar/fabrication_handrails_on.gif";
		
		robotics_fab_off = new Image(197,19);										robotics_fab_off.src = "images/fabrication_bar/robotics_fab_off.gif";
		robotics_fab_on = new Image(197,19);										robotics_fab_on.src = "images/fabrication_bar/robotics_fab_on.gif";
		
		structural_off = new Image(197,19);											structural_off.src = "images/fabrication_bar/structural_off.gif";
		structural_on = new Image(197,19);											structural_on.src = "images/fabrication_bar/structural_on.gif";
	}

function flipOff(imageName)
	{	
		imgSrc = eval(imageName + "_off.src");
		document[imageName].src = imgSrc;
	}

function flipOn(imageName)
	{	
		imgSrc = eval(imageName + "_on.src");
		document[imageName].src = imgSrc;
	}