imagelarge = new Array(2);
imagelarge[0] = "<A HREF='lowest_mortgage_rate.html'><IMG SRC='images/lb-mortgage_rates.gif' WIDTH='177' HEIGHT='61' BORDER='0'></A>";
imagelarge[1] = "<A HREF='self_employed.html'><IMG SRC='images/lb-self_employed.gif' WIDTH='177' HEIGHT='61' BORDER='0'></A>";

index = Math.floor(Math.random() * imagelarge.length);
document.write(imagelarge[index]);