/*************************************************************************
  This code is from Dynamic Web Coding at dyn-web.com
  Copyright 2003-5 by Sharon Paine 
  See Terms of Use at http://www.dyn-web.com/bus/terms.html
  regarding conditions under which you may use this code.
  This notice must be retained in the code as is!
*************************************************************************/

// optional preloader 
var imageHandler = { 
    path:"images/", // path to images
    imgs:[], preload:function() { for(var i=0;arguments[i];i++) {
    var img=new Image(); img.src=this.path+arguments[i]; this.imgs[this.imgs.length]=img;}}
}

/*  Start: Tooltip functions  ----------------------------------------------------------------------------------------------------------------------- */

function doTooltip(e, msg) {
  if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
  Tooltip.clearTimer();
  var tip = document.getElementById? document.getElementById(Tooltip.tipID): null;
  if ( tip && tip.onmouseout == null ) {
      tip.onmouseout = Tooltip.tipOutCheck;
      tip.onmouseover = Tooltip.clearTimer;
  }
  Tooltip.show(e, msg);
}

function doTooltipTextImage(e, ar) {
    if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
    var cntnt = wrapTipContent(ar);
    var tip = document.getElementById( Tooltip.tipID );
    Tooltip.show(e, cntnt);
}

/* To hide onmouseoout  
function hideTip() {
  if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
  Tooltip.hide();
}
*/

/* To give the user time to click on the link in the tooltip */
function hideTip() {
  if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
  Tooltip.timerId = setTimeout("Tooltip.hide()", 300);
}

Tooltip.tipOutCheck = function(e) {
  e = dw_event.DOMit(e);
  // is element moused into contained by tooltip?
  var toEl = e.relatedTarget? e.relatedTarget: e.toElement;
  if ( this != toEl && !contained(toEl, this) ) Tooltip.hide();
}

// returns true of oNode is contained by oCont (container)
function contained(oNode, oCont) {
  if (!oNode) return; // in case alt-tab away while hovering (prevent error)
  while ( oNode = oNode.parentNode ) if ( oNode == oCont ) return true;
  return false;
}

Tooltip.timerId = 0;
Tooltip.clearTimer = function() {
  if (Tooltip.timerId) { clearTimeout(Tooltip.timerId); Tooltip.timerId = 0; }
}

Tooltip.unHookHover = function () {
    var tip = document.getElementById? document.getElementById(Tooltip.tipID): null;
    if (tip) {
        tip.onmouseover = null; 
        tip.onmouseout = null;
        tip = null;
    }
}


function wrapTipContent(ar) {
    var cntnt = "";
    if ( ar[0] ) cntnt += '<div class="img"><img src="' + ar[0] + '"></div>';
    if ( ar[1] ) cntnt += '<div class="txt">' + ar[1] + '</div>';
    return cntnt;
}

dw_event.add(window, "unload", Tooltip.unHookHover, true);

/*  End: Tooltip functions  ----------------------------------------------------------------------------------------------------------------------- */

/*  Functions to manager Iframes */
function setIframe(h) {
  var theIframe = document.getElementById? document.getElementById('ifrm'): document.all? document.all['ifrm']: null;
  if (theIframe) {
    viewport.getWinHeight();
    //  Both theIframe.height and theIframe.style.height seem to work. 
    theIframe.style.height = Math.round( h * viewport.height ) + "px";
    theIframe.style.marginTop = Math.round( (viewport.height - parseInt(theIframe.style.height) )/2 ) + "px";
  }
}

// for sizing and positioning the iframe in the window
// .5 for height="50%"
setIframe(widthFractionForIframe);
window.onresize = function() { setIframe(widthFractionForIframe) }

function getDocHeight(doc) {
  var docHt = 0, sh, oh;
  if (doc.height) docHt = doc.height;
  else if (doc.body) {
    if (doc.body.scrollHeight) docHt = sh = doc.body.scrollHeight;
    if (doc.body.offsetHeight) docHt = oh = doc.body.offsetHeight;
    if (sh && oh) docHt = Math.max(sh, oh);
  }
  return docHt;
}

function setIframeHeight(iframeName) {
  var iframeWin = window.frames[iframeName];
  var iframeEl = document.getElementById? document.getElementById(iframeName): document.all? document.all[iframeName]: null;
  if ( iframeEl && iframeWin ) {
    iframeEl.style.height = "auto"; // Helps resize (for some) if new doc is shorter than the previous doc.
    var docHt = getDocHeight(iframeWin.document);
    // need to add to height to be sure it will all show
    if (docHt) iframeEl.style.height = docHt + 30 + "px";
  }
}

function loadIframe(iframeName, url) {
  if ( window.frames[iframeName] ) {
    window.frames[iframeName].location = url;   
    return false;
  }
  else return true;
}