// redirect new release menu item to the Ajax version
function ajaxLinks(){
 var newReleases = document.getElementById("n_newreleases")
 newReleases = newReleases.getElementsByTagName("a")
 newReleases[0].href = newReleases[0].href.replace(/new_releases/,"new_releases2")
 
 //var index = document.getElementById("ncat")
 //index = index.getElementsByTagName("a")
 //index[0].href = index[0].href.replace(/(\/books\/)/,"/books/index2.asp")
  
 // var index2 = document.getElementById("ncatsub");
 // index2 = index2.getElementsByTagName("a")
 // index2[index2.length - 1].href = index2[0].href
}


function highlighter(){
 var tableRow = document.getElementById("booklist")
  tableRow = tableRow.getElementsByTagName("tr")
 var thumb = document.getElementById("thumbs")
  thumb = thumb.getElementsByTagName("img")
 
 var filter = /^\w/
 var isOdd = false
 
if(tableRow.length > 1){  
 for(i=0;i<tableRow.length;i++){ 
    
    tableRow[i].onmouseover = function(){
     var id = this.id.replace(filter,"");
     if(id){
      var link = document.getElementById("b" +id).parentNode;
      var poke = document.getElementById("poke")
      var image = document.getElementById("b" + id)
      
      if(id.length>6){document.getElementById("b" +id).className = "thumbHover"}
      if(this.className == "odd"){isOdd = true}else{isOdd = false}
      this.className = "titleHover"
      
      poke.style.left = (findPosX(image) + 10) + "px";
      poke.style.top = (findPosY(image) - 4) + "px";
      
      if(document.getElementById("ieTrap")){
       poke.style.left = (findPosX(image) - 110) + "px";
      }
      
      
      poke.style.position = "absolute";
      poke.style.zIndex = "9999";
      poke.style.display = "block";
     }
    }

    tableRow[i].onmouseout = function(){
     var id = this.id.replace(filter,"");
     if(id){
      var link = document.getElementById("b" +id).parentNode;
      var poke = document.getElementById("poke")
      
      poke.style.display = "none";
      
      if(!isOdd){
       this.className = "titleNormal";
      }else{
       this.className = "odd";
      }
     }
    }
    
    if(tableRow[i].getElementsByTagName("span")[0]){
    tableRow[i].getElementsByTagName("span")[0].onclick = function(){
     var id = this.parentNode.parentNode.id.replace(filter,"");
     if(document.getElementById("b" +id).parentNode.href){
      this.title = "click for larger cover image";
      
      var theWindow = window.open(document.getElementById("b" +id).parentNode.href, 'fullview', 'location = 0, statusbar = 1, menubar = 0, width = 456px, height = 544px');
      theWindow.focus();
     }
   }
  }
  }
 }
}


function fullview(){
 var thumbs = document.getElementsBySelector(".thumbs")
 for(t=0;t<thumbs.length;t++){
  var temp = thumbs[t].getElementsByTagName("a")
  for(i=0;i<temp.length;i++){
   if(!document.getElementById("ieTrap")){	  
    temp[i].onclick = function boog(e){
     var theWindow = window.open(this.href, 'fullview', 'location = 0, statusbar = 1, menubar = 0, width = 458px, height = 546px');
     e.preventDefault();
    }
   }else{
    temp[i].target = "_blank";
    temp[i].onclick = function boog(e){
    window.event.returnValue = false;
    window.open(this.href, 'fullview', 'location = 0, statusbar = 1, menubar = 0, width = 458px, height = 546px');
    }
   }
  }
 }
}



function findPosX(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function findPosY(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

/* 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
*/