var img_value='5'

if(img_value == '1')
    { var str_img = 'option1-125x151.png'}
    
if(img_value == '2')
    { var str_img = 'option2-125x125.png'}

if(img_value == '3')
    { var str_img = 'option6-468x60.gif'}

if(img_value == '4')
    { var str_img = 'option7-339X60.gif'}

if(img_value == '5')
    { var str_img = 'option5-110x93.png'}

document.write('<a href="http://www.rooferscoffeeshop.com/linkback.asp?f=' + document.domain + '" target="rcs_window"><img src="http://www.rooferscoffeeshop.com/images/links/' + str_img + '" border="0" alt="Support the Roofers Coffee Shop click here"/></a>')