/**

 *  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);



/**

 *  End.

 */