function bootstrap() {
	// start the nav
	startList();
	
	if(typeof bannerstart != 'undefined') bannerRotate();
		
	// search onfocus
	document.getElementById('s').onfocus = function() {
		document.getElementById('s').value='';
	}
}

function bannerRotate() {
	var ajax = new Ajax.PeriodicalUpdater('bigBanner', 'includes/bannerrotate.php', {
 		method: 'get', frequency: 8
	});
}

function startList() {
	var opera = 0;
	var msie_gt_6 = 0;
	var ua = window.navigator.userAgent;
	if (ua.indexOf("Opera") > -1) opera = 1;
	if (ua.indexOf("MSIE") > -1) {
    	if (ua.indexOf("MSIE 7") > -1 || ua.indexOf("MSIE 8") > -1) {
    	   msie_gt_6 = 1;
        }
	}
    if(document.all && document.getElementById  && !opera && !msie_gt_6) {
		navRoot = document.getElementById("main_nav");
		navLeft = document.getElementById("outerContainer").offsetLeft;
		navLeft += document.getElementById("leftContainer").offsetLeft;
		navTop = document.getElementById("main_nav").offsetTop;
		for (i = 0; i < navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if(node.nodeName == "LI") {
				for(c = 0; c < node.childNodes.length; c++) {
					if(node.childNodes[c].nodeName == "UL") ulref = node.childNodes[c];
				}		
				node.className = "out";
				node.onmouseover = function() {
					for(c = 0; c < this.childNodes.length; c++) {
						if(this.childNodes[c].nodeName == "UL") ulref = this.childNodes[c];
					}				
					this.className = "over";
					ulref.style.left = navLeft + 250 + "px";
					ulref.style.top = navTop + 5 +  this.offsetTop + "px"
				}
				node.onmouseout = function() {
					this.className = "out";
				}
				
				/*for(x = 0; x < ulref.childNodes.length; x++) {
					subnode = ulref.childNodes[x];
					if (subnode.nodeName == "LI") {
						subnode.onmouseover = function() {
							this.style.backgroundColor = "#8FBBC7";
						}				
						subnode.onmouseout = function() {
							this.style.backgroundColor = "#CCDDE0";
						}
					}
				}*/					
				
			}
		}
	}
}

// pushto - change the location to a passed in value
function pushto(url) {
	location.href=url;
}

// pop_image(imagepath,width,height)
function pop_image(imagepath,width,height) {
	var options = 'scrollbars=yes,status=no,menu=no,location=no,resizable=yes,width='+width+',height='+height;
	var pop = window.open('/popup.php?img='+imagepath,'popimage',options);
}

function pop_gallery_image(id,inst_id,aid,width,height) {
	var options = 'scrollbars=yes,status=no,menu=no,location=no,resizable=yes,width='+width+',height='+height;
	var pop = window.open('/gallery-popup.php?id='+id+'&aid='+aid+'&inst_id='+inst_id,'popimage',options);
}

function pop_window(url,options) {
	if(options.length == 0) options = "resizable=yes,titlebar=yes,scrollbars=yes,toolbar=yes,location=yes";
	var pop = window.open(url,'pbi_popup',options);
}

function bibView(id) {
	var url = "/bibliography-single.php?id=" + id;
	var winid = "bib" + id;
	var win = window.open(url,winid,"status=no,width=600,height=500,resize=no,menubar=no,toolbar=no,scrollbars=yes");
}

function makeBib() {
	document.add_form.submit();
	var url = "/make-bib.php";
	var winid = "bib_full";
	var win = window.open(url,winid,"status=no,width=600,height=500,resize=no,menubar=yes,toolbar=no,scrollbars=yes");	
}

// Cookie Functions 
// originally by Scott Andrew (http://www.scottandrew.com)
// modified by Quirksmode (http://www.quirksmode.org)

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


/* Search Highlighting Code: http://www.nsftools.com/misc/SearchAndHighlight.htm */
/*
 * This is the function that actually highlights a text string by
 * adding HTML tags before and after all occurrences of the search
 * term. You can pass your own tags if you'd like, or if the
 * highlightStartTag or highlightEndTag parameters are omitted or
 * are empty strings then the default <font> tags will be used.
 */
function doHighlight(bodyText, searchTerm, highlightStartTag, highlightEndTag) 
{
  // the highlightStartTag and highlightEndTag parameters are optional
  if ((!highlightStartTag) || (!highlightEndTag)) {
    highlightStartTag = '<span class="search_highlight">';
    highlightEndTag = "</span>";
  }
  
  // find all occurences of the search term in the given text,
  // and add some "highlight" tags to them (we're not using a
  // regular expression search, because we want to filter out
  // matches that occur within HTML tags and script blocks, so
  // we have to do a little extra validation)
  var newText = "";
  var i = -1;
  var lcSearchTerm = searchTerm.toLowerCase();
  var lcBodyText = bodyText.toLowerCase();
    
  while (bodyText.length > 0) {
    i = lcBodyText.indexOf(lcSearchTerm, i+1);
    if (i < 0) {
      newText += bodyText;
      bodyText = "";
    } else {
      // skip anything inside an HTML tag
      if (bodyText.lastIndexOf(">", i) >= bodyText.lastIndexOf("<", i)) {
        // skip anything inside a <script> block
        if (lcBodyText.lastIndexOf("/script>", i) >= lcBodyText.lastIndexOf("<script", i)) {
          newText += bodyText.substring(0, i) + highlightStartTag + bodyText.substr(i, searchTerm.length) + highlightEndTag;
          bodyText = bodyText.substr(i + searchTerm.length);
          lcBodyText = bodyText.toLowerCase();
          i = -1;
        }
      }
    }
  }
  return newText;
}


/*
 * This is sort of a wrapper function to the doHighlight function.
 * It takes the searchText that you pass, optionally splits it into
 * separate words, and transforms the text on the current web page.
 * Only the "searchText" parameter is required; all other parameters
 * are optional and can be omitted.
 */
function highlightSearchTerms(searchText, treatAsPhrase, warnOnFailure, highlightStartTag, highlightEndTag)
{
  // if the treatAsPhrase parameter is true, then we should search for 
  // the entire phrase that was entered; otherwise, we will split the
  // search string so that each word is searched for and highlighted
  // individually
  if (treatAsPhrase) {
    searchArray = [searchText];
  } else {
    searchArray = searchText.split(" ");
  }
  if (!document.body || typeof(document.body.innerHTML) == "undefined") {
    if (warnOnFailure) {
      alert("Sorry, for some reason the text of this page is unavailable. Searching will not work.");
    }
    return false;
  }
  var bodyText = document.body.innerHTML;
  for (var i = 0; i < searchArray.length; i++) {
    bodyText = doHighlight(bodyText, searchArray[i], highlightStartTag, highlightEndTag);
  }
  
  document.body.innerHTML = bodyText;
  return true;
}



window.onload=bootstrap;