/* =============================================================================
$Id: popup.js,v 1.6 2006/01/13 09:16:51 rupert Exp $
$Date: 2006/01/13 09:16:51 $
$Revision: 1.6 $
$Author: rupert $
Copyright (c) 2006 Conchango Ltd. All rights reserved.
Web Application Version: [@LABEL@]
Release Date: [@RELEASE_DATE@]
============================================================================= */

var topNav =
{
	overClass: 'hover',
	outClass: '',
	selClass: 'selected',
	
	over: function(el)
	{
		if (this.selClass != el.className) el.className=this.overClass;
	},
	
	out: function(el)
	{
		if (this.selClass != el.className) el.className=this.outClass;
	}
}

var leftNav =
{
/*	delayIn1:		20,
	delayOut1:		50,
	delayIn2:		75,
	delayOut2:		175,
	delayIn3:		150,
	delayOut3:		250,
	step:			5,
	baseColour1:	200,
	outColour1:		255,
	baseColour2:	225,
	outColour2:		255,
	baseColour3:	245,
	outColour3:		255,
	hoverColour:	175,
	up:				-1,
	down:			1,
*/
	delayIn1:		0,
	delayOut1:		0,
	delayIn2:		0,
	delayOut2:		0,
	delayIn3:		0,
	delayOut3:		0,
	step:			5,
	baseColour1:	200,
	outColour1:		255,
	baseColour2:	225,
	outColour2:		255,
	baseColour3:	245,
	outColour3:		255,
	hoverColour:	175,
	up:				-1,
	down:			1,
	
	over:function(el)
	{
		if (el.timer) clearInterval(el.timer);
		
		switch(el.parentNode.className)
		{
			case 'leftNav1':
				this._change(el.id,this.baseColour1,this.hoverColour,this.delayIn1,this.up);
				break;
			case 'leftNav2':
				this._change(el.id,this.baseColour2,this.outColour2,this.delayIn1,this.down);
				break;
			case 'leftNav3':
				this._change(el.id,this.baseColour3,this.outColour3,this.delayIn1,this.down);
				break;
		}
	},
	
	out:function(el)
	{
		if (el.timer) clearInterval(el.timer);
		
		switch(el.parentNode.className)
		{
			case 'leftNav1':
				this._change(el.id,this.outColour1,this.baseColour1,this.delayOut1,this.up);
				break;
			case 'leftNav2':
				this._change(el.id,this.outColour2,this.baseColour2,this.delayOut2,this.up);
				break;
			case 'leftNav3':
				this._change(el.id,this.outColour3,this.baseColour3,this.delayOut3,this.up);
				break;
		}
	},
		 
	_change:function(elid,value,target,delay,dir)
	{
        var el = $(elid); //we have to do this as IE is too dumb to allow us to pass an element referance in a timer object.
        // MBE 520 - stop fancy shading on left nav - tactical solution
        // TODO: SB 19/11/09 tidy javascript to remove this completely.....
        value = target;
		if (el != null) {
            el.style.backgroundColor = 'rgb('+value+','+value+','+value+')'

            if (value!=target)
            {
                value+=leftNav.step*dir;
                var fCall = 'leftNav._change("'+elid+'",'+value+','+target+','+delay+','+dir+')';
                el.timer=setTimeout(fCall,delay);
            }
            else if (target==leftNav.hoverColour)
            {
                value+=leftNav.step
                var fCall = 'leftNav._change("'+elid+'",'+value+','+255+','+delay+','+leftNav.down+')';
                el.timer=setTimeout(fCall,delay);
            }
        }
    }
}