var displayduration=0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 300; // maximum image size.
var previewwidth = currentimageheight;
var prev_h;
var prev_w;

function getprevobj(o){

    if (document.getElementById)
        return document.getElementById(o).style
    else if (document.all)
        return document.all.o.style
}

function getprevobjnostyle(o){

    if (document.getElementById)
        return document.getElementById(o)
    else if (document.all)
        return document.all.o
}

function getObjectByName(n){
    alert(n);

    return(document.getElementsByTagName(n)[0].firstChild);
}

function truebody(){
   return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showprev(imagesrc, oid, brand, w, h, t1, t2, hoid, titleinfo){
        prev_h = h;
        prev_w = w;

        newHTML = '<img src="' + imagesrc + '" border="0">';

        getprevobjnostyle("previewcontainer").innerHTML = newHTML;
        setTimeout('getprevobj("previewcontainer").visibility="visible"');

}

function hideprev(){
        getprevobj("previewcontainer").visibility="hidden";
        getprevobj("previewcontainer").left="-1500px";
        document.onmousemove="";
}