// Image Buttons arrays
var imgButtonArray = new Array();

// Image Button constants
var imgNormal    = "";
var imgMouseover = "_o";
var imgExtension = ".gif";

var IMG_DIR = "/images/";


function writeButton(imgName, tooltip, imgSrc, clickAction, imgHref, imgTarget) {
   // keep track of the status of each Image Button
   imgButtonArray[imgName] = new Array();
   imgButtonArray[imgName]["name"] = imgName;
   imgButtonArray[imgName]["imgSrc"] = imgSrc;

   imgButtonArray[imgName]["clickAction"] = clickAction;
   imgButtonArray[imgName]["imgHref"] = imgHref;

   var imgInit;
   imgInit = imgNormal;
   if (clickAction && clickAction.indexOf(';') <0 ) clickAction += ';';
   var img_button_mouseover = new Image();
   img_button_mouseover.src = IMG_DIR + imgSrc + imgMouseover + imgExtension;
//   if (imgHref == "") {
//       imgHref = "javascript:donothing()";
//      }
   // HYPERLINK
   document.write("<A ");
//   document.write("class=ImageButtonLink ");
   document.write("href=\"" + imgHref + "\" ");
   document.write("onFocus=\"window.status='" + tooltip + "';return true;\" ");
   document.write("onBlur=\"window.status='';return true;\" ");

   // if imgTarget specified, set the target
   if (imgTarget) document.write("target=" + imgTarget + " ");

   //onClick
   document.write("onClick=\"");
   if (clickAction) {
     document.write(clickAction);
   }
   if (!imgHref) {
      document.write("return false;\" ");
   } else {
    document.write("return (imgButtonArray['" +imgName + "']['imgHref'] != null && imgButtonArray['" + imgName + "']['imgHref'].length > 0);\" ");
   }

   //onMouseOver
   document.write("onMouseOver=\"");
   document.write("document.images['" + imgName + "'].src = '" + IMG_DIR +imgSrc + imgMouseover + imgExtension + "';");
   document.write("window.status='" + tooltip + "';");
   document.write("return (true);\" ");

   //onMouseOut
   document.write("onMouseOut=\"");
   document.write("document.images['" + imgName + "'].src = '" + IMG_DIR + imgSrc + imgNormal + imgExtension + "';");
   document.write("window.status='';");
   document.write("return (true);\" ");
   document.write(">");

   // IMAGE
   document.write("<IMG ");
   document.write("src='" + IMG_DIR + imgSrc + imgInit + imgExtension + "' ");
//   document.write("class=ImageButton ");
   document.write("name=" + imgName + " ");
   document.write("alt='" + tooltip + "' ");
   document.write("border=0 ");
   document.write(">");

   // CLOSE THE HYPERLINK
   document.write("</A>");
}

function donothing() {
    return;
    }