var le_w = longitude_embedded_width;
var le_h =  longitude_embedded_height;
var le_d = longitude_reading_guide; // destination id
var le_r = longitude_partner_code;
document.write('<iframe width="'+ le_w +'" height="'+ le_h +'" frameborder="0" src="http://www.longitudebooks.com/find/d/' + le_d + '/embedded/1/r/' + le_r + '"></iframe>');