ajax - Using JavaScript/JSON in your Ebay listings to post user selected options back to you -

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i seeing ebay users create listings data dynamically sent , fetched external sources. can shipping calculator or variants have provided product in drop-down list.

see example here

somehow data sent php page returns postcode image

also upgrade drop down lists seem send json objects php page etc.

anyone know involved in solution , if there's guide/script resource ebay listings out there let me know how this?

thanks...

see did -> opened link posted, opened listing description firebug, found js script withing listing description, not complicated one.
guess need @ script learn did there.
guess uses jsonp or similar techique. can use iframe b.t.w


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