/**********************************************************************
   Page load
 *********************************************************************/

function doPageLoad() {
   rolloverInit();
   preloadGlobalImages();
   /*setTimeout('initTopnav()', 500);
   stripe('dataTable', '#DFE5F2', '#FFFFFF'); */
}

/**********************************************************************
   Image rollovers
 *********************************************************************/

function isDefined(property) {
  return (typeof property != 'undefined');
}

var rolloverInitialized = false;
function rolloverInit() {
   if (!rolloverInitialized && isDefined(document.images)) {
      
      // get all images (including all <input type="image">s)
      // use getElementsByTagName() if supported
      var images = new Array();
      if (isDefined(document.getElementsByTagName)) {
         images = document.getElementsByTagName('img');
         var inputs = document.getElementsByTagName('input');
         for (var i = 0; i < inputs.length; i++) {
            if (inputs[i].type == 'image') {
               images[images.length] = inputs[i];
            }
         }
      }
      
      // otherwise, use document.images and document.forms collections
      // remove if not supporting IE4, Opera 4-5
      else {
         images = document.images;
         inputs = new Array();
         for (var formIndex = 0; formIndex < document.forms.length; formIndex++) {
            for (var elementIndex = 0; elementIndex < document.forms.elements.length; elementIndex++) {
               if (isDefined(document.forms.elements[i].src)) {
                  inputs[inputs.length] = document.forms.elements[i];
               }
            }
         }
      }
      
      // get all images with '_off.' in src value
      for (var i = 0; i < images.length; i++) {
         if (images[i].src.indexOf('_off.') != -1) {
            var image = images[i];
            
            // store the off state filename in a property of the image object
            image.offImage = new Image();
            image.offImage.src = image.src;
            
            // store the on state filename in a property of the image object
            // (also preloads the on state image)
            image.onImage = new Image();
            image.onImage.imageElement = image;
            
            // add onmouseover and onmouseout event handlers once the on state image has loaded
            // Safari's onload is screwed up for off-screen images; temporary fix
            if (navigator.userAgent.toLowerCase().indexOf('safari') != - 1) {
               image.onmouseover = function() {
                  this.src = this.onImage.src;
               };
               image.onmouseout = function() {
                  this.src = this.offImage.src;
               };
            }
            else {
               image.onImage.onload = function() {
                  this.imageElement.onmouseover = function() {
                     this.src = this.onImage.src;
                  };
                  this.imageElement.onmouseout = function() {
                     this.src = this.offImage.src;
                  };
               };
            }
            
            // set src of on state image after defining onload event handler
            // so cached images (that load instantly in IE) will trigger onload
            image.onImage.src = image.src.replace(/_off\./, '_over.');
         }
      }
   }
   rolloverInitialized = true;
}


/**********************************************************************
   Preload Images
 *********************************************************************/

function preloadGlobalImages() {
   var imageURLs = [];
   for (var imageIndex = 0; imageIndex < imageURLs.length; imageIndex++) {
      (new Image()).src = imageURLs[imageIndex];
   }
}


/**********************************************************************
   Cleaning the DOM (for Mozilla)
   (see http://www.codingforums.com/showthread.php?t=7028)
 *********************************************************************/

var notWhitespace = /\S/;

function cleanWhitespace(node) {
   for (var x = 0; x < node.childNodes.length; x++) {
      var childNode = node.childNodes[x];
      
      // remove any whitespace text nodes
      if ( childNode.nodeType == 3 && !notWhitespace.test(childNode.nodeValue) ) {
         node.removeChild(node.childNodes[x]);
         x--;
      }
      
      // recurse thru any element nodes removing whitespace
      if (childNode.nodeType == 1) {
         cleanWhitespace(childNode);
      }
   }
}

// function to show & hide content
function hidedivs(id) { 
	if (document.getElementById) { // DOM3 = IE5, NS6 
		document.getElementById(id).style.display = 'none'; 
	} 
} 

function showdivs(id) { 
	if (document.getElementById) { // DOM3 = IE5, NS6 
		document.getElementById(id).style.display = 'block';
	} 
}
// end function to show & hide content