window.thumbsup = function(dom,parent){
    var parent = parent || dom.getParentNodeByTagName('FORM');
    if(!parent){
        parent = document.body;
    }
    const thumbs = Array.from(parent.getElementsByClassName('thumbsup'));
    const value = parseInt(dom.getAttribute('value'));
    const span = dom.getElementsByTagName('SPAN')[0];
    const name = dom.getAttribute('name');
    window.criteria = window.criteria ?? {};
    window.criteria.rerank = window.criteria.rerank ?? '[]';
    let json = JSON.parse(window.criteria.rerank);
    const index = json.indexOf(value);
    if(index != -1){
        json.splice(index, 1);
        dom.classList.remove('selected');
        span.innerText = '';
        thumbs.forEach(item =>{
            let v = parseInt(item.getAttribute('value'));
            let i = json.indexOf(v);
            if(i != -1){
                let s = item.getElementsByTagName('SPAN')[0];
                s.innerText = i+1;
            }
        });
    }else{
        json.push(value);
        dom.classList.add('selected');
        span.innerText = json.length;
    }
    window.criteria.rerank = JSON.stringify(json);
    const button = document.getElementById('thumbsupbutton');
    if(button){
        button.style.display = (json.length>0) ? 'block' : 'none';
    }
}