jsonp wcf cross domain

i have been struggled in wcf cross domain issue using jquery/ajax.
someone told me jsonp may be able to resolve the issue.
Can you show me how to enable wcf with jsonp?
and more importantly how to call jsonp?
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Rainer JeschorCommented:
this is one of the better technical explanation posts:

In general there are two important things:
1. WCF service web.config
This has to have the cross domain enabled:
                <binding name="webHttpBindingWithJsonP"
                         crossDomainScriptAccessEnabled="true" />

Open in new window

2. jQuery JSONP
This is just setting the correct property of the $.ajax call:
dataType: "jsonp"

Open in new window


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