HIGHLIGHT JS CODE

highlight.js

// https://stackoverflow.com/questions/16251505/how-to-highlight-all-text-occurrences-in-a-html-page-with-javascript

/*
 * Search for text in the window ignoring tags
 * 
 * Parameters:
 *     text: a string to search for
 *     backgroundColor: 
 *         "yellow" for example, when you would like to highlight the words
 *         "transparent", when you would like to clear the highlights
 * */
function doSearch(text, backgroundColor) {
    if (window.find && window.getSelection) {
        document.designMode = "on";
        var sel = window.getSelection();
        sel.collapse(document.body, 0);

        while (window.find(text)) {
            document.execCommand("HiliteColor", false, backgroundColor);
            sel.collapseToEnd();
        }
        document.designMode = "off";
    }
}
doSearch("long first","green")
doSearch("second","pink")
doSearch("first","yellow")