40 lines
1.1 KiB
HTML
40 lines
1.1 KiB
HTML
<script>
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function hashLocate(hashValue) {
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hashValue = hashValue.replace(/^.*#h-/, '');
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var element = document.getElementById(hashValue);
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if (!element) {
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return;
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}
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var headerHeight = 0;
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var header = document.querySelector('header');
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if (header) {
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headerHeight = header.offsetHeight;
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}
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var supportPageOffset = window.pageXOffset !== undefined;
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var isCSS1Compat = ((document.compatMode || "") === "CSS1Compat");
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var x = supportPageOffset ? window.pageXOffset : isCSS1Compat ? document.documentElement.scrollLeft : document.body.scrollLeft;
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var y = supportPageOffset ? window.pageYOffset : isCSS1Compat ? document.documentElement.scrollTop : document.body.scrollTop;
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var offsetY = element.offsetTop - headerHeight - 12;
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if (y === offsetY) {
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return;
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}
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window.scrollTo(x, offsetY);
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}
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// The first event occurred
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if (window.location.hash) {
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hashLocate(window.location.hash);
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}
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window.addEventListener('click', function(event) {
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if (event.target.matches('a')) {
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hashLocate(event.target.getAttribute('href'));
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}
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});
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</script>
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