function showGallery(file, txt){
/*
gallerMainImg
galleryText
*/
    var galleryImg = document.getElementById('gallerMainImg');
    var galleryTxt = document.getElementById('galleryText');
    
    galleryImg.style.backgroundImage="url('files/gallery/large/"+file+"')";
    galleryTxt.innerHTML=txt;

    var divs= document.getElementById('galleryThumbContainer').getElementsByTagName('div');
    //for(i in divs){
    for(i=0;i<divs.length;i++){ 
        //divs.getElementsByTagName('div').style.border="1px solid black";
        divs[i].style.border="2px solid white";
    }
}