7. A non-transitory computer-readable medium storing therein a program that causes the computer to execute a process, the process comprising: acquiring a web page description to be edited; detecting a description that refers to a library written in an interpretive language in the acquired web page description; and generating a description of a modified web page in which the web page description is modified by inserting, into the web page description before the web page description is read by a web browser, source code for indicating a trigger for interpretation to be executed upon completion of initialization of the library corresponding to the detected description and code for editing a description in the interpretive language using the library corresponding to the detected description.
7. A non-transitory computer-readable medium storing therein a program that causes the computer to execute a process, the process comprising: acquiring a web page description to be edited; detecting a description that refers to a library written in an interpretive language in the acquired web page description; and generating a description of a modified web page in which the web page description is modified by inserting, into the web page description before the web page description is read by a web browser, source code for indicating a trigger for interpretation to be executed upon completion of initialization of the library corresponding to the detected description and code for editing a description in the interpretive language using the library corresponding to the detected description. 9. non-transitory computer-readable medium according to claim 7 , wherein the process comprising: when detecting the description that refers to the library written in the interpretive language, detecting each of a plurality of the descriptions that refers to a corresponding one of a plurality of the libraries written in the interpretive language, the descriptions being included in the web page description; and when generating the description of the modified web page, generating the description of the modified web page so as to start the code for editing after completion of initialization of each of the libraries corresponding to one of the detected descriptions.