/**
 * Rollover script from ilo 
 */
 
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->


/**
 *  Most of the scripts below were found at
 *  www.alistapart.com and related sites.  They are used
 *  here because they are web standards compliant.  These
 *  scripts are all free to reuse and are not licensed as
 *  part of the Kryptronic Hybrid X Core (KHXC).
 *
 *  All onload() events go at the bottom of this file.
 */

/**
 *  Function DisableSubmit() used to disable submit buttons
 *  after then have been depressed.  This is implemented to
 *  stop multiple click submissions of forms.
 */

var submitted = false;

function DisableSubmit(formname) {

     if(submitted == true) { return; }
     document.forms[formname].submit();
     document.forms[formname].SUBMIT.value = 'Please Wait...';
     document.forms[formname].SUBMIT.disabled = true;
     submitted = true;

}

/**
 *  Function externalLinks() used to provide a standards
 *  compliant way of producing a pop-up link to another
 *  page.
 */

function externalLinks() {

     if (!document.getElementsByTagName) return;
     var anchors = document.getElementsByTagName("a");
     for (var i=0; i<anchors.length; i++) {
     var anchor = anchors[i];
     if (anchor.getAttribute("href") &&
     anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
     }

}

/**
 *  Function to add multiple onload() events to a page. 
 *  Authored by Scott Andrew.  Visit www.scottandrew.com
 *  for info.
 */

function addEvent(elm, evType, fn, useCapture) {

     if (elm.addEventListener) {
     elm.addEventListener(evType, fn, useCapture);
     return true;
     } else if (elm.attachEvent) {
     var r = elm.attachEvent('on' + evType, fn);
     return r;
     } else {
     elm['on' + evType] = fn;
     }

}

/**
 *	Whatever:hover - V1.42.060206 - hover & active
 *	------------------------------------------------------------
 *	(c) 2005 - Peter Nederlof
 *	Peterned - http://www.xs4all.nl/~peterned/
 *	License  - http://creativecommons.org/licenses/LGPL/2.1/
 *
 *	Whatever:hover is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU Lesser General Public
 *	License as published by the Free Software Foundation; either
 *	version 2.1 of the License, or (at your option) any later version.
 *
 *	Whatever:hover is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *	Lesser General Public License for more details.
 *
 *	Credits and thanks to:
 *	Arnoud Berendsen, Martin Reurings, Robert Hanson
 *
 *	howto: body { behavior:url("csshover.htc"); }
 *	------------------------------------------------------------
 */

var csshoverReg = /(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i,

currentSheet, doc = window.document, hoverEvents = [], activators = {
onhover:{on:'onmouseover', off:'onmouseout'},
onactive:{on:'onmousedown', off:'onmouseup'}
}

function parseStylesheets() {

     if(!/MSIE (5|6)/.test(navigator.userAgent)) return;
     window.attachEvent('onunload', unhookHoverEvents);
     var sheets = doc.styleSheets, l = sheets.length;
     for(var i=0; i<l; i++) 
     parseStylesheet(sheets[i]);

}

function parseStylesheet(sheet) {

     if(sheet.imports) {
     try {
     var imports = sheet.imports, l = imports.length;
     for(var i=0; i<l; i++) parseStylesheet(sheet.imports[i]);
     } catch(securityException){}
     }
     try {
     var rules = (currentSheet = sheet).rules, l = rules.length;
     for(var j=0; j<l; j++) parseCSSRule(rules[j]);
     } catch(securityException){}

}

function parseCSSRule(rule) {

     var select = rule.selectorText, style = rule.style.cssText;
     if(!csshoverReg.test(select) || !style) return;
     var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1');
     var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo);
     var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1];
     var affected = select.replace(/:(hover|active).*$/, '');
     var elements = getElementsBySelect(affected);
     if(elements.length == 0) return;
     currentSheet.addRule(newSelect, style);
     for(var i=0; i<elements.length; i++)
     new HoverElement(elements[i], className, activators[pseudo]);

}

function HoverElement(node, className, events) {

     if(!node.hovers) node.hovers = {};
     if(node.hovers[className]) return;
     node.hovers[className] = true;
     hookHoverEvent(node, events.on, function() { node.className += ' ' + className; });
     hookHoverEvent(node, events.off, function() { node.className = node.className.replace(new RegExp('\s+'+className, 'g'),''); });

}

function hookHoverEvent(node, type, handler) {

     node.attachEvent(type, handler);
     hoverEvents[hoverEvents.length] = { 
     node:node, type:type, handler:handler 
     };

}

function unhookHoverEvents() {

     for(var e,i=0; i<hoverEvents.length; i++) {
     e = hoverEvents[i]; 
     e.node.detachEvent(e.type, e.handler);
     }
}

function getElementsBySelect(rule) {

     var parts, nodes = [doc];
     parts = rule.split(' ');
     for(var i=0; i<parts.length; i++) {
     nodes = getSelectedNodes(parts[i], nodes);
     }
     return nodes;

}

function getSelectedNodes(select, elements) {

     var result, node, nodes = [];
     var identify = (/\#([a-z0-9_-]+)/i).exec(select);
     if(identify) {
     var element = doc.getElementById(identify[1]);
     return element? [element]:nodes;
     }
     var classname = (/\.([a-z0-9_-]+)/i).exec(select);
     var tagName = select.replace(/(\.|\#|\:)[a-z0-9_-]+/i, '');
     var classReg = classname? new RegExp('\b' + classname[1] + '\b'):false;
     for(var i=0; i<elements.length; i++) {
     result = tagName? elements[i].all.tags(tagName):elements[i].all; 
     for(var j=0; j<result.length; j++) {
     node = result[j];
     if(classReg && !classReg.test(node.className)) continue;
     nodes[nodes.length] = node;
     }
     }	
     return nodes;

}

/**
 *  Function to show or hide an id within an XHTML page.
 */

function idShowHide(obj) {

     var el = document.getElementById(obj);
     if ( el.style.display != "none" ) {
     el.style.display = 'none';
     } else {
     el.style.display = 'block';
     }
}

/**
 *  All onload() events here.
 */

addEvent(window,'load',externalLinks,false);
addEvent(window,'load',parseStylesheets,false);

/** from ilo 
 */
 
MM_preloadImages('media/workshops/workshop_home_arrow.gif','media/shared/view_cart_f2.gif','media/shared/bookstore_f2.gif','media/shared/workshops_f2.gif','media/shared/about_f2.gif','media/shared/contact_f2.gif','media/shared/foot_home_f2.gif','media/shared/foot_bookstore_f2.gif','media/shared/foot_workshops_f2.gif','media/shared/foot_about_f2.gif','media/shared/foot_contact_f2.gif');

/**
 *  End.
 */