Patent ID: 8739303

Claim:
A method for displaying a state of an embedded device using a browser, the embedded device and the browser operable by at least one processor in a computing environment, the method comprising: requesting the browser to display a text file having a description of a screen structure in response to a request to display state information; acquiring the state information on a current state of the embedded device in response to reading the text file by the browser; submitting, by a state display control program, an access request for requesting the browser to update, with the acquired state information, a value of at least one node in a document object model (DOM) tree generated from the text file by the browser; displaying the text file on a screen of the embedded device in response to the request to display state information; recording the at least one node in an access history list in response to the request to update the value of the at least one node, the access history list including at least one of an object identifier of the at least one node and contents of the access request; and at a subsequent time, determining whether to permit a subsequent access request for the at least one node based on a source of the subsequent access request; wherein: if the source of the subsequent access request is not the state display control program, and the at least one node is recorded in the access history list, the subsequent access request is denied, and if the source of the subsequent access request is the state display control program, the subsequent request is granted without referring to the access history list.