// JavaScript Document

function simplePreload()
{ 
  var args = simplePreload.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}

function switchImage(imgName, onOff) {
    imgDir = "/Images/";
    if (document.images) {
        if (onOff == "on") document.images[imgName].src = imgDir + imgName + "_on.gif";
        else document.images[imgName].src = imgDir + imgName + "_off.gif";
    }
}

function switchImageJpg(imgName, onOff) {
    imgDir = "/Images/";
    if (document.images) {
        if (onOff == "on") document.images[imgName].src = imgDir + imgName + "_on.jpg";
        else document.images[imgName].src = imgDir + imgName + "_off.jpg";
    }
}

function switchLinkAndImage(linkPairNumber,onOrOff) {
    var link_button = "link_button_" + linkPairNumber;
    var link_text = "link_text_" + linkPairNumber;
    document.getElementById(link_button).src='../Images/link_button_' + onOrOff + '.gif';
    if (onOrOff == "on") {
        document.getElementById(link_text).className = "on";
    } else document.getElementById(link_text).className="";
}

function switch_underlining(articleNumber, onOrOff) {
	var at = document.getElementById("at_" + articleNumber);
	if (onOrOff == "on") at.className += "_on";
	else at.className = at.className.replace("_on", "");
}