// blowup.js



function showBlowup(divID, imageID) {
if(document.layers) {

  // Navigator 4 model

  var divObject = document.layers[divID]

  var imageObject = document.images[imageID]

  divObject.pageX = imageObject.x

  divObject.pageY = imageObject.y

  divObject.visibility = "visible"

 } else if(document.all) {

  // Internet Explorer model

  var divStyle = document.all.item(divID).style

  var imageObject = document.images[imageID]

  divStyle.posLeft = (window.event.clientX - window.event.offsetX)

  divStyle.posTop = (window.event.clientY - window.event.offsetY + document.body.scrollTop)

  if (navigator.appVersion.indexOf("Mac") >= 0) { // work around Mac IE bug

   divStyle.posTop -= document.body.scrollTop

   }

  divStyle.visibility = "visible"

 }

}



function showBlowupInNewWindow(imageFileURL,width,height) {

 // Workaround for Navigator 6

 windowOptions = "directories=0,menubar=0,personalbar=0,status=0,resizable=1,width="

 windowOptions += width + ",height=" + height

 window.open(imageFileURL,"nav6workaround",windowOptions)

}



function hideBlowup(divID) {

 if(document.layers) {

   var divObject = document.layers[divID]

   divObject.visibility = "hidden"

 } else if (document.all) {

  // Use IE DHTML

  var divStyle = document.all.item(divID).style

  divStyle.visibility = "hidden"

 }

}