arab health

da_companies = [];

function httpGetAsync(url, callback) {
    let xmlHttp = new XMLHttpRequest();
    xmlHttp.onreadystatechange = function() {
        if (xmlHttp.readyState == 4 && xmlHttp.status == 200) callback(xmlHttp.responseText);
    };

    xmlHttp.open("GET", url, true); // true for asynchronous
    xmlHttp.send(null);
}

for (let i = 1; i <= 5; i++) {
    let url = 'https://www.omnia-health.com/exhibitordirectory/arab-health?page=' + i + '&countryfield=GB&product_categories=15646'
    httpGetAsync(url, (page) => {
        let el = document.createElement('html');
        el.innerHTML = page;

        var da_nodes = document.getElementsByClassName('node node-booth node-teaser view-mode-teaser');

        for (let i = 0; i < da_nodes.length; i++) {
            let rows = [
                da_nodes[i].querySelector("div.booth-location-numbers"),
                da_nodes[i].querySelector("div.section-two > h3 > a"),
                da_nodes[i].querySelector("div.section-two > p")
            ];

            booth = rows[0] && rows[0].innerText;
            company = rows[1] && rows[1].innerText;
            url = rows[1] && rows[1].href;
            description = rows[2] && rows[2].innerText.replace(/[\W_]+/g," ");;

            company = [booth, company, url, description];

            da_companies.push(company.join(';'));
        }
    });
}