// JavaScript Document



//Overlay for popups
jQuery(document).ready(function() {
jQuery("a[rel]").overlay();
});


// Engage Us popup containing "Contact Us, Locate Us, Recommend Us, Live Chat" 
jQuery(function() {
	jQuery("#flowtabs").tabs("#flowpanes > div", { history: true });
});


// Login Popup containing "WebInterpoint, My Account, Webex, Live Meeting"
jQuery(function() {
	jQuery("#logintabs").tabs("#loginpanes > div");
});


// Jquery Effect for form labels "fade in / fade out & disappear"
jQuery(function(){ 
		jQuery("label").inFieldLabels(); });


//  Form tabs for login
jQuery(document).ready(function () {
				jQuery('#loginmenu').tabify();
			});
					
	

// slide out panel on forms

    jQuery(function() { 
    jQuery('#slide').hide(); 
    jQuery(':radio[name=radiobutton]').click(function() { 
        var value = jQuery(this).val(); 
        if (value === 'Y') { 
            jQuery('#slide').show('slow'); 
        } else if (value === 'N') { 
            jQuery('#slide').hide('slow'); 
        } 
    }); 
}); 















// jQuery plugin for login tabs
(function($){ 
     $.fn.extend({  
         tabify: function() {
			function getHref(el){
				hash = $(el).find('a').attr('href');
				if(hash)
					return hash.substring(0,hash.length-4);
				else
					return false;
				}
		 	function setActive(el){
				$(el).addClass('active');
				if(getHref(el))
					$(getHref(el)).show();
				else
					return false;
				$(el).siblings('li').each(function(){
					$(this).removeClass('active');
					$(getHref(this)).hide();
				});
			}
			return this.each(function() {
				var self = this;
				
				$(this).find('li>a').each(function(){
					$(this).attr('href',$(this).attr('href') + '-tab');
				});
				
				function handleHash(){
					if(location.hash)
						setActive($(self).find('a[href=' + location.hash + ']').parent());
				}
				if(location.hash)
					handleHash();
				setInterval(handleHash,100);
				$(this).find('li').each(function(){
					if($(this).hasClass('active'))
						$(getHref(this)).show();
					else
						$(getHref(this)).hide();
				});
            }); 
        } 
    }); 
})(jQuery);



















//Script for image hover //

//If the browser is W3 DOM compliant, execute setImageSwaps function
if (document.getElementsByTagName && document.getElementById) {
if (window.addEventListener) window.addEventListener('load', setImageSwaps, false);
else if (window.attachEvent) window.attachEvent('onload', setImageSwaps);
}

//When document loads, apply the prepareImageSwap function to various images with our desired settings
function setImageSwaps() {
//Mousedown, restore - for images in container with ID=example2
prepareImageSwap('example2',true,true,true,true);
//Hover, mousedown, no restore - for images in container with ID=example3
prepareImageSwap('example3',true,false,true,false);
//Hover with restore, most basic usage - for any image in document.body that are not yet processed (function accepts elements,too)
prepareImageSwap(document.body);
//Note that once an image is processed, it won't be processed again, so you should set more specific images first, e.g. document.body, as it is the grand
//container, has to be processed last.
}


//The following is the function that do the actual job

function prepareImageSwap(elem,mouseOver,mouseOutRestore,mouseDown,mouseUpRestore,mouseOut,mouseUp) {
//Do not delete these comments.
//Non-Obtrusive Image Swap Script by Hesido.com
//V1.1
//Attribution required on all accounts
	if (typeof(elem) == 'string') elem = document.getElementById(elem);
	if (elem == null) return;
	var regg = /(.*)(_nm\.)([^\.]{3,4})$/
	var prel = new Array(), img, imgList, imgsrc, mtchd;
	imgList = elem.getElementsByTagName('img');

	for (var i=0; img = imgList[i]; i++) {
		if (!img.rolloverSet && img.src.match(regg)) {
			mtchd = img.src.match(regg);
			img.hoverSRC = mtchd[1]+'_hv.'+ mtchd[3];
			img.outSRC = img.src;
			if (typeof(mouseOver) != 'undefined') {
				img.hoverSRC = (mouseOver) ? mtchd[1]+'_hv.'+ mtchd[3] : false;
				img.outSRC = (mouseOut) ? mtchd[1]+'_ou.'+ mtchd[3] : (mouseOver && mouseOutRestore) ? img.src : false;
				img.mdownSRC = (mouseDown) ? mtchd[1]+'_md.' + mtchd[3] : false;
				img.mupSRC = (mouseUp) ? mtchd[1]+'_mu.' + mtchd[3] : (mouseOver && mouseDown && mouseUpRestore) ? img.hoverSRC : (mouseDown && mouseUpRestore) ? img.src : false;
				}
			if (img.hoverSRC) {preLoadImg(img.hoverSRC); img.onmouseover = imgHoverSwap;}
			if (img.outSRC) {preLoadImg(img.outSRC); img.onmouseout = imgOutSwap;}
			if (img.mdownSRC) {preLoadImg(img.mdownSRC); img.onmousedown = imgMouseDownSwap;}
			if (img.mupSRC) {preLoadImg(img.mupSRC); img.onmouseup = imgMouseUpSwap;}
			img.rolloverSet = true;
		}
	}

	function preLoadImg(imgSrc) {
		prel[prel.length] = new Image(); prel[prel.length-1].src = imgSrc;
	}

}

function imgHoverSwap() {this.src = this.hoverSRC;}
function imgOutSwap() {this.src = this.outSRC;}
function imgMouseDownSwap() {this.src = this.mdownSRC;}
function imgMouseUpSwap() {this.src = this.mupSRC;}












/* script for slide out on home page

http://www.brandspankingnew.net/specials/crossfader/bsn.Crossfader.html

*/


/**
 *  author:		Timothy Groves - http://www.brandspankingnew.net
 *	version:	1.3 - 2006-11-02
 *				1.2 - 2006-11-01
 *				1.1 - 2006-09-29
 *				1.0 - 2006-09-25
 *
 *	requires:	nothing
 *
 */

var useBSNns;

if (useBSNns)
{
	if (typeof(bsn) == "undefined")
		bsn = {}
	var _bsn = bsn;
}
else
{
	var _bsn = this;
}





_bsn.Crossfader = function (divs, fadetime, delay )
{	
	this.nAct = -1;
	this.aDivs = divs;
	
	for (var i=0;i<divs.length;i++)
	{
		document.getElementById(divs[i]).style.opacity = 0;
		document.getElementById(divs[i]).style.position = "absolute";
		document.getElementById(divs[i]).style.filter = "alpha(opacity=0)";
		document.getElementById(divs[i]).style.visibility = "hidden";
	}
	
	this.nDur = fadetime;
	this.nDelay = delay;
		
	this._newfade();
}


_bsn.Crossfader.prototype._newfade = function()
{
	if (this.nID1)
		clearInterval(this.nID1);
	
	this.nOldAct = this.nAct;
	this.nAct++;
	if (!this.aDivs[this.nAct])	this.nAct = 0;
	
	if (this.nAct == this.nOldAct)
		return false;
	
	document.getElementById( this.aDivs[this.nAct] ).style.visibility = "visible";
	
	this.nInt = 50;
	this.nTime = 0;
	
	var p=this;
	this.nID2 = setInterval(function() { p._fade() }, this.nInt);
}


_bsn.Crossfader.prototype._fade = function()
{
	this.nTime += this.nInt;
	
	var ieop = Math.round( this._easeInOut(this.nTime, 0, 1, this.nDur) * 100 );
	var op = ieop / 100;
	document.getElementById( this.aDivs[this.nAct] ).style.opacity = op;
	document.getElementById( this.aDivs[this.nAct] ).style.filter = "alpha(opacity="+ieop+")";
	
	if (this.nOldAct > -1)
	{
		document.getElementById( this.aDivs[this.nOldAct] ).style.opacity = 1 - op;
		document.getElementById( this.aDivs[this.nOldAct] ).style.filter = "alpha(opacity="+(100 - ieop)+")";
	}
	
	if (this.nTime == this.nDur)
	{
		clearInterval( this.nID2 );
		
		if (this.nOldAct > -1)
			document.getElementById( this.aDivs[this.nOldAct] ).style.visibility = "hidden";	
		
		var p=this;
		this.nID1 = setInterval(function() { p._newfade() }, this.nDelay);
	}
}



_bsn.Crossfader.prototype._easeInOut = function(t,b,c,d)
{
	return c/2 * (1 - Math.cos(Math.PI*t/d)) + b;
}



/*  carousel for logos on homepage */