No puedo tomar el Valor de un Combo para realizar una consulta
Hola, por lo visto quieres hacer algo como esto:
http://www.canon.com.pa/main/consumibles
eso es con js usando json, podes revisar el script de esta pagina
http://www.canon.com.pa/main/modules/mod_seccatselect/js/artic.js
este es el json que se genera con el php
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