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You can use apex:actionFunction (though it has been superceded by Javascript remoting more recently)
have a look at this
http://www.salesforce.com/us/developer/docs/pages/Content/pages_compref_actionFunction.htm
In a line, an actionFunction has a call to a controller method, and can be invoked by a javascript function, which is invoked on an event. You can also pass parameters to the controller using apex:param
By action function i will call controller method and this will set value of variable.
My question is we can retrieve controller variable values in javascript by just binding it like {! variable}
Can we also set the value of this variable from javascript something like {!variable} = value
Sothat i do not have extra overhead of an action function and a method in controller just to set the value.
Thanks
Can we set the value of controller variable in JavaScript using binding {! }; something same as we retrieve it by writing
alert(‘{!myVariable}’);