17 lines
477 B
JavaScript
17 lines
477 B
JavaScript
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function promptGoToPage(index_no) {
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var page_no = prompt('Go to which page?');
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if (page_no === null) {
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return;
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}
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var index = window['page_index_' + index_no];
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page_no = parseInt(page_no);
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if (isNaN(page_no) || page_no < 1 || page_no > index.num_pages) {
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return alert('Invalid page number.');
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}
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var offset = index.wildcard_url.indexOf('start=') !== -1 ? (page_no - 1) * index.per_page : page_no;
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window.location.href = index.wildcard_url.replace('%d', offset)
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}
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