function previous (e) {
  var currPage = document.getElementById("pageMarker").innerHTML;
  var prevPage = "#";
  var prevPageNum = -1;
  if (currPage.match(/^c/)) {
    if(navigator.appName == "Microsoft Internet Explorer") {
      prevPageNum = currPage.split(/c/)[0];
    } else {
	  prevPageNum = currPage.split(/c/)[1];
	}
    prevPageNum--;
    var prevPage = "c"+(prevPageNum)+".php";
  } else if (currPage.match(/^a/)) {
    if(navigator.appName == "Microsoft Internet Explorer") {
      prevPageNum = currPage.split(/a/)[0];
    } else {
      prevPageNum = currPage.split(/a/)[1];
    }
    prevPageNum--;
    var prevPage = "a"+(prevPageNum)+".php";
  } else if (currPage.match(/^r/)) {
    if(navigator.appName == "Microsoft Internet Explorer") {
	  prevPageNum = currPage.split(/r/)[0];
	} else {
	  prevPageNum = currPage.split(/r/)[1];
	}
	prevPageNum--;
	var prevPage = "r"+(prevPageNum)+".php";
  }
  if (prevPageNum <= 0) { prevPage = "#" };
  window.location.href = prevPage;
}

function next (e) {
  var currPage = document.getElementById("pageMarker").innerHTML;
  var pageName = "";
  if (currPage.match(/^c/)) {
    pageName = "nextComic.php?curr="+currPage;
    window.location.href = pageName;
  } else if (currPage.match(/^a/)) {
    pageName = "nextArticle.php?curr="+currPage;
	window.location.href = pageName;
  } else if (currPage.match(/^r/)) {
    pageName = "nextCoolRatings.php?curr="+currPage;
	window.location.href = pageName;
  }
}

function loadPage (dropDown) {
  var myIndex  = dropDown.selectedIndex;
  var selectedValue = dropDown.options[myIndex].value;
  var fileName = selectedValue+".php";
  window.location.href = fileName;
}

function hoverMouseOver (e) {
  e.className += " hover";
}

function hoverMouseOut (e) {
  e.className = e.className.replace(" hover", "");
}