function showB1()
{
 document.write('<a href = "http://www.venapro.com/?aid=638632"  onmouseover="(window.status=\'http://www.venapro.com/\'); return true" onmouseout="(window.status=\'\'); return true"> <img src="http://media.markethealth.com/bannerServer.php?type=image&ad_id=1884&aid=638632" border=0></a>');
}
function showB2()
{
 document.write('<a href = "http://www.venapro.com/?aid=638632"  onmouseover="(window.status=\'http://www.venapro.com/\'); return true" onmouseout="(window.status=\'\'); return true"> <img src="http://media.markethealth.com/bannerServer.php?type=image&ad_id=283&aid=638632" border=0 ></a>');
}
function showB3()
{
 document.write('<a href = "http://www.venapro.com/?aid=638632"  onmouseover="(window.status=\'http://www.venapro.com/\'); return true" onmouseout="(window.status=\'\'); return true"> <img src="http://media.markethealth.com/bannerServer.php?type=image&ad_id=1888&aid=638632" border=0></a>');
}
function showB4()
{
 document.write('<a href = "http://www.venapro.com/?aid=638632"  onmouseover="(window.status=\'http://www.venapro.com/\'); return true" onmouseout="(window.status=\'\'); return true"> <img src="http://media.markethealth.com/bannerServer.php?type=image&ad_id=1880&aid=638632" border=0></a>');
}