/*
	Standards Compliant Rollover Script
	Original Author : Daniel Nolan
	http://www.dnolan.com/code/js/rollover/
	Modified by Colm Delaney, 2008-01-26
	1. getElementsBySelector function used to allow same flexibility in scope
		as regular CSS selectors: images don't need to be specially tagged
	2. modified to allow images to have conventional 'off' and 'on' suffixes
*/

// user defined variables
var imgOffSuffix	= '_off';					// e.g. image in 'off' state might be 'imagename_off.gif'
var imgOnSuffix	= '_on';						// e.g. image in 'on' state might be 'imagename_on.gif'
var imgsSelector	= 'a.callbutton img';		// selector for all applicable images

// preloads
image1		= new Image();
image1.src	= "images/topOn.gif";

/* FUNCTIONS */

// initialize
window.onload = startup;

function startup() {
	initRollovers();
	//allocateSidebarHeight();
	//focusLogin('#frmLogin', 'frmLogin', 'txtPassword');
	//initNavRollovers();
}

function allocateSidebarHeight() {
//alert('ok');
var wrapperDom = document.getElementById("colleft");
var contentDom = document.getElementById("left");
var bodyDom		= document.getElementById("main");

var browserName 		= navigator.appName;
var browserDetails	= navigator.appVersion;
var browserVer 		= parseInt(browserDetails);

//alert('Browser: ' + browserName + ', version: ' + browserVer + ', ' + navigator.appVersion);

var ieversion = 0;
if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;
 ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
//  alert("You're using IE" + ieversion)
}

if (!(browserName == "Microsoft Internet Explorer" && ieversion <= 6)) {

	contentDom.style.height = (wrapperDom.offsetHeight - 300) + "px";

}


//if((contentDom.offsetHeight-800) > sidebarDom.offsetHeight) {
//wrapperDom.style.height = (contentDom.offsetHeight-800)+"px";
//}

//wrapperDom.style.height = 1500 + "px";
/* 
if (bodyDom.offsetHeight > wrapperDom.offsetHeight) {
	contentDom.style.height = (bodyDom.offsetHeight - contentDom.paddingBottom) + "px";
	//contentDom.style.height = bodyDom.offsetHeight + "px";
}
 */
//contentDom.style.height = (wrapperDom.offsetHeight - contentDom.paddingBottom)+ "px";
//wrapperDom.style.height = contentDom.offsetHeight + "px";

}

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad 				= new Array();
	var sTempSrc;
	var aImages 				= document.getElementsBySelector(imgsSelector);
	for (var i = 0; i < aImages.length; i++) {		
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(imgOffSuffix+ftype, imgOnSuffix+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace(imgOnSuffix+ftype, imgOffSuffix+ftype);
				this.setAttribute('src', sTempSrc);
			}
	}
}

// where login form exists, focus selector on key field
function focusLogin(loginFormSelector, loginFormName, loginFormField) {
	if (document.getElementsBySelector(loginFormSelector)){
		if (typeof(document.forms[loginFormName]) != "undefined") {
			var elemName = document.forms[loginFormName].elements[loginFormField];
			if (typeof(elemName) != "undefined") {
				elemName.focus();
			}
		}
	}
}

function focusElement(formName, elemName) {
	var elemName = document.forms[formName].elements[elemName];
	if (elemName) {
		elemName.focus;
	}
}

function outputArray(arrayin) {
	var output = arrayin.join("\n");
	return output;
}

function getElementsByClassName(className) {
    var allElements = (document.all) ? document.all : document.
getElementsByTagName("*");
    var results = new Array();
    var re = new RegExp("\\b" + className + "\\b");
    for (var i = 0; i < allElements.length; i++) {
        if (re.test(allElements[i].className)) {
            results.push(allElements[i]);
        }
    }
    return results;
}

/* document.getElementsBySelector(selector)
   - returns an array of element objects from the current document
     matching the CSS selector. Selectors can contain element names, 
     class names and ids and can be nested. For example:
     
       elements = document.getElementsBySelect('div#main p a.external')
     
     Will return an array of all 'a' elements with 'external' in their 
     class attribute that are contained inside 'p' elements that are 
     contained inside the 'div' element which has id="main"

   New in version 0.4: Support for CSS2 and CSS3 attribute selectors:
   See http://www.w3.org/TR/css3-selectors/#attribute-selectors

   Version 0.4 - Simon Willison, March 25th 2003
   -- Works in Phoenix 0.5, Mozilla 1.3, Opera 7, Internet Explorer 6, Internet Explorer 5 on Windows
   -- Opera 7 fails 
*/

function getAllChildren(e) {
  // Returns all children of element. Workaround required for IE5/Windows. Ugh.
  return e.all ? e.all : e.getElementsByTagName('*');
}

document.getElementsBySelector = function(selector) {
  // Attempt to fail gracefully in lesser browsers
  if (!document.getElementsByTagName) {
    return new Array();
  }
  // Split selector in to tokens
  var tokens = selector.split(' ');
  var currentContext = new Array(document);
  for (var i = 0; i < tokens.length; i++) {
    token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
    if (token.indexOf('#') > -1) {
      // Token is an ID selector
      var bits = token.split('#');
      var tagName = bits[0];
      var id = bits[1];
      var element = document.getElementById(id);
      if (tagName && element.nodeName.toLowerCase() != tagName) {
        // tag with that ID not found, return false
        return new Array();
      }
      // Set currentContext to contain just this element
      currentContext = new Array(element);
      continue; // Skip to next token
    }
    if (token.indexOf('.') > -1) {
      // Token contains a class selector
      var bits = token.split('.');
      var tagName = bits[0];
      var className = bits[1];
      if (!tagName) {
        tagName = '*';
      }
      // Get elements matching tag, filter them for class selector
      var found = new Array;
      var foundCount = 0;
      for (var h = 0; h < currentContext.length; h++) {
        var elements;
        if (tagName == '*') {
            elements = getAllChildren(currentContext[h]);
        } else {
            elements = currentContext[h].getElementsByTagName(tagName);
        }
        for (var j = 0; j < elements.length; j++) {
          found[foundCount++] = elements[j];
        }
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      for (var k = 0; k < found.length; k++) {
        if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
          currentContext[currentContextIndex++] = found[k];
        }
      }
      continue; // Skip to next token
    }
    // Code to deal with attribute selectors
    if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
      var tagName = RegExp.$1;
      var attrName = RegExp.$2;
      var attrOperator = RegExp.$3;
      var attrValue = RegExp.$4;
      if (!tagName) {
        tagName = '*';
      }
      // Grab all of the tagName elements within current context
      var found = new Array;
      var foundCount = 0;
      for (var h = 0; h < currentContext.length; h++) {
        var elements;
        if (tagName == '*') {
            elements = getAllChildren(currentContext[h]);
        } else {
            elements = currentContext[h].getElementsByTagName(tagName);
        }
        for (var j = 0; j < elements.length; j++) {
          found[foundCount++] = elements[j];
        }
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      var checkFunction; // This function will be used to filter the elements
      switch (attrOperator) {
        case '=': // Equality
          checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };
          break;
        case '~': // Match one of space seperated words 
          checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };
          break;
        case '|': // Match start with value followed by optional hyphen
          checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };
          break;
        case '^': // Match starts with value
          checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };
          break;
        case '$': // Match ends with value - fails with "Warning" in Opera 7
          checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); };
          break;
        case '*': // Match ends with value
          checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };
          break;
        default :
          // Just test for existence of attribute
          checkFunction = function(e) { return e.getAttribute(attrName); };
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      for (var k = 0; k < found.length; k++) {
        if (checkFunction(found[k])) {
          currentContext[currentContextIndex++] = found[k];
        }
      }
      // alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue);
      continue; // Skip to next token
    }
    // If we get here, token is JUST an element (not a class or ID selector)
    tagName = token;
    var found = new Array;
    var foundCount = 0;
    for (var h = 0; h < currentContext.length; h++) {
      var elements = currentContext[h].getElementsByTagName(tagName);
      for (var j = 0; j < elements.length; j++) {
        found[foundCount++] = elements[j];
      }
    }
    currentContext = found;
  }
  return currentContext;
}

/* That revolting regular expression explained 
/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/
  \---/  \---/\-------------/    \-------/
    |      |         |               |
    |      |         |           The value
    |      |    ~,|,^,$,* or =
    |   Attribute 
   Tag
*/