function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}

function change_link(img_name,img_id,pID){
	document.getElementById('p_m_img').src='images/products/medium/'+img_name;
	document.getElementById('p_m_link1').href='javascript:popupWindow(\'http://www.smallb2c.com/popup_image.php?pID='+pID+'&iID='+img_id+'\');';
	document.getElementById('p_m_link2').href='javascript:popupWindow(\'http://www.smallb2c.com/popup_image.php?pID='+pID+'&iID='+img_id+'\');';
}