function changepage(page, buttonnum,pagedir)
{
document.viewer.src="/images/loading.gif";
document.viewer.src=pagedir+page+".jpg";
document.getElementById('comicpagenumber').innerHTML="Page: " + buttonnum;
}

function changepagepng(page, buttonnum,pagedir)
{
document.viewer.src="/images/loading.gif";
document.viewer.src=pagedir+page+".png";
document.getElementById('comicpagenumber').innerHTML="Page: " + buttonnum;
}

function mouseover(id,greencolor)
{
greencolor=greencolor*4;

element = document.getElementById(id);
element.style.background = 'rgb(200,'+greencolor+',0)'; 
}

function mouseout(id)
{
element = document.getElementById(id); 
element.style.background = "#000000"; 
}