function roll(img_name1, img_src1, on_off)
   {

if (img_name1 != 'subx'){
document.getElementById(img_name1).src = img_src1;
}


if (img_name1 == 'sub1'  && on_off == 'on')
	{
	document.getElementById('DivExample').innerHTML = "<img src=images/1text-bar.JPG><a href=jaime_walker_portfolio.pdf><img src=images/1text-download.JPG></a><img src=images/1text-slash.JPG><a href=autoviewer/index.html><img src=images/1text-autoviewer.JPG></a>";	
	}
else if (img_name1 == 'sub2'  && on_off == 'on')
	{
	document.getElementById('DivExample').innerHTML = "<img src=images/2text.JPG>";
	}
else if (img_name1 == 'sub3'  && on_off == 'on')
	{
	document.getElementById('DivExample').innerHTML = "<img src=images/3text.JPG>";
	} 
else if (img_name1 == 'sub4'  && on_off == 'on')
	{
	document.getElementById('DivExample').innerHTML = "<img src=images/4text.JPG>";	
	}
else if (img_name1 == 'sub5'  && on_off == 'on')
	{
	document.getElementById('DivExample').innerHTML = "<img src=images/5text.JPG>";
	}
else 
	{	
	document.getElementById('DivExample').innerHTML = "<img src=images/front_text.JPG>";
	}
}