/**
 *  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.
 */

/**
* onclick for text fields clear fields
**/
function clearText(field){
if (field.defaultValue == field.value) field.value = '';
	else if (field.value == '') field.value = field.defaultValue;
}

function addOrSubtractQuantity(valueApply,inputShow,divShow) {
	var plusorminus = valueApply;
	inputQuantityValue = document.getElementById(inputShow).value;
	inputQuantityDivShow = document.getElementById(divShow).innerHTML;
	
	if(plusorminus == '+') {
		inputQuantityValue = parseInt(inputQuantityValue)+1;
		//alert(inputQuantityValue);
		//inputQuantityDivShow = inputQuantityValue;
		document.getElementById(inputShow).value=inputQuantityValue;
		document.getElementById(divShow).innerHTML=inputQuantityValue;
	} else if(plusorminus == '-') {
		inputQuantityValue = parseInt(inputQuantityValue)-1;
		//inputQuantityDivShow = inputQuantityValue;
		if(parseInt(inputQuantityValue)>0)
		{
			document.getElementById(inputShow).value=inputQuantityValue;
		}
		document.getElementById(divShow).innerHTML=inputQuantityValue;
	}
	
}


/**
*** Handle Tab Box OMG
**/
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 switchTab(tabHighlight,checkCookieStatus) {
	if((readCookie('OMGSetTab') == 'JSTabSearch' || readCookie('OMGSetTab') == 'JSTabAccount' || readCookie('OMGSetTab') == 'JSTabCart') && checkCookieStatus == 1) {
		tabHighlight = readCookie('OMGSetTab');
	}
	createCookie('OMGSetTab',tabHighlight,1);
	if(tabHighlight == 'JSTabSearch') {
		document.getElementById('JSTabSearch').style.backgroundImage = "url(/skins/OMGUKSKIN/media/searchtabhover.jpg)";
		document.getElementById('JSTabAccount').style.backgroundImage = "url(/skins/OMGUKSKIN/media/myaccounttab.jpg)";
		document.getElementById('JSTabCart').style.backgroundImage = "url(/skins/OMGUKSKIN/media/carttab.jpg)";
		document.getElementById('JSTabSearch').style.color = "#ffffff";
		document.getElementById('JSTabAccount').style.color = "#9a9a9a";
		document.getElementById('JSTabCart').style.color = "#9a9a9a";
		document.getElementById('JSTabBox1').style.display = "block";
		document.getElementById('JSTabBox2').style.display = "none";
		document.getElementById('JSTabBox3').style.display = "none";
	} else if(tabHighlight == 'JSTabAccount') {
		document.getElementById('JSTabSearch').style.backgroundImage = "url(/skins/OMGUKSKIN/media/searchtab.jpg)";
		document.getElementById('JSTabAccount').style.backgroundImage = "url(/skins/OMGUKSKIN/media/myaccounttabhover.jpg)";
		document.getElementById('JSTabCart').style.backgroundImage = "url(/skins/OMGUKSKIN/media/carttab.jpg)";
		document.getElementById('JSTabSearch').style.color = "#9a9a9a";
		document.getElementById('JSTabAccount').style.color = "#ffffff";
		document.getElementById('JSTabCart').style.color = "#9a9a9a";
		document.getElementById('JSTabBox1').style.display = "none";
		document.getElementById('JSTabBox2').style.display = "block";
		document.getElementById('JSTabBox3').style.display = "none";
	} else if(tabHighlight == 'JSTabCart') {
		document.getElementById('JSTabSearch').style.backgroundImage = "url(/skins/OMGUKSKIN/media/searchtab.jpg)";
		document.getElementById('JSTabAccount').style.backgroundImage = "url(/skins/OMGUKSKIN/media/myaccounttab.jpg)";
		document.getElementById('JSTabCart').style.backgroundImage = "url(/skins/OMGUKSKIN/media/carttabhover.jpg)";
		document.getElementById('JSTabSearch').style.color = "#9a9a9a";
		document.getElementById('JSTabAccount').style.color = "#9a9a9a";
		document.getElementById('JSTabCart').style.color = "#ffffff";
		document.getElementById('JSTabBox1').style.display = "none";
		document.getElementById('JSTabBox2').style.display = "none";
		document.getElementById('JSTabBox3').style.display = "block";
	}
}