/************************************************************************************************************
	(C) www.dhtmlgoodies.com, October 2005
	
	Version 1.2: Updated, November 12th. 2005
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	Terms of use:
	You are free to use this script as long as the copyright message is kept intact. However, you may not
	redistribute, sell or repost it without our permission.
	
	Thank you!
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/		
	var panelWidth = 550;		
	var slideSpeed = 20;		
	var slideTimer = 10;	
	var slideActive = true;	
	var initBodyMargin = 0;	
	var pushMainContentOnSlide = true;	
	var panelPosition = 1; 	
	
	/*	以下の変数は変更不可 */
	var slideLeftPanelObj=false;
	var slideInProgress = false;	
	var startScrollPos = false;
	var panelVisible = false;
	function initSlideLeftPanel(expandOnly)
	{
		if(slideInProgress)return;
		if(!slideLeftPanelObj){
			if(document.getElementById('dhtmlgoodies_leftPanel')){	
				slideLeftPanelObj = document.getElementById('dhtmlgoodies_leftPanel');
				if(panelPosition == 1)slideLeftPanelObj.style.width = '100%';
			}else{	
				slideLeftPanelObj = document.createElement('DIV');
				slideLeftPanelObj.id = 'dhtmlgoodies_leftPanel';
				slideLeftPanelObj.style.display='none';
				document.body.appendChild(slideLeftPanelObj);
			}
			
			if(panelPosition == 1){
				slideLeftPanelObj.style.top = "-" + panelWidth + 'px';
				slideLeftPanelObj.style.left = '0px';	
				slideLeftPanelObj.style.height = panelWidth + 'px';			
			}else{
				slideLeftPanelObj.style.left = "-" + panelWidth + 'px';
				slideLeftPanelObj.style.top = '0px';
				slideLeftPanelObj.style.width = panelWidth + 'px';
			}
			

			if(!document.all || navigator.userAgent.indexOf('Opera')>=0)slideLeftPanelObj.style.position = 'fixed';;
		}	
		
		if(panelPosition == 0){
			if(document.documentElement.clientHeight){
				slideLeftPanelObj.style.height = document.documentElement.clientHeight + 'px';
			}else if(document.body.clientHeight){
				slideLeftPanelObj.style.height = document.body.clientHeight + 'px';
			}
			var leftPos = slideLeftPanelObj.style.left.replace(/[^0-9\-]/g,'')/1;
		}else{
			if(document.documentElement.clientWidth){
				slideLeftPanelObj.style.width = document.documentElement.clientWidth + 'px';
			}else if(document.body.clientHeight){
				slideLeftPanelObj.style.width = document.body.clientWidth + 'px';
			}
			var leftPos = slideLeftPanelObj.style.top.replace(/[^0-9\-]/g,'')/1;			
			
			
		}
		slideLeftPanelObj.style.display='block';
		
		if(panelPosition==1)
			startScrollPos = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
		else
			startScrollPos = Math.max(document.body.scrollLeft,document.documentElement.scrollLeft);
		if(leftPos<(0+startScrollPos)){
			if(slideActive){
				slideLeftPanel(slideSpeed);	
			
			}else{
				document.body.style.marginLeft = panelWidth + 'px';
				slideLeftPanelObj.style.left = '0px';
			}
		}else{
			if(expandOnly)return;
			if(slideActive){		
				slideLeftPanel(slideSpeed*-1);
			}else{
				if(panelPosition == 0){
					if(pushMainContentOnSlide)document.body.style.marginLeft =  initBodyMargin + 'px';
					slideLeftPanelObj.style.left = (panelWidth*-1) + 'px';	
				}else{
					if(pushMainContentOnSlide)document.body.style.marginTop =  initBodyMargin + 'px';
					slideLeftPanelObj.style.top = (panelWidth*-1) + 'px';						
				}			
			}
		}	
		
		if(navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('Opera')<0){
			window.onscroll = repositionHelpDiv;
		
			repositionHelpDiv();
		}
		window.onresize = resizeLeftPanel;
		
	}
	
	function resizeLeftPanel()
	{
		if(panelPosition == 0){
			if(document.documentElement.clientHeight){
				slideLeftPanelObj.style.height = document.documentElement.clientHeight + 'px';
			}else if(document.body.clientHeight){
				slideLeftPanelObj.style.height = document.body.clientHeight + 'px';
			}		
		}else{
			if(document.documentElement.clientWidth){
				slideLeftPanelObj.style.width = document.documentElement.clientWidth + 'px';
			}else if(document.body.clientWidth){
				slideLeftPanelObj.style.width = document.body.clientWidth + 'px';
			}	
		}
	}
	
	function slideLeftPanel(slideSpeed){
		slideInProgress =true;
		var scrollValue = 0;
		if(panelPosition==1)
			var leftPos = slideLeftPanelObj.style.top.replace(/[^0-9\-]/g,'')/1;
		else
			var leftPos = slideLeftPanelObj.style.left.replace(/[^0-9\-]/g,'')/1;
			
		leftPos+=slideSpeed;
		okToSlide = true;
		if(slideSpeed<0){
			if(leftPos < ((panelWidth*-1) + startScrollPos)){
				leftPos = (panelWidth*-1) + startScrollPos;	
				okToSlide=false;
			}
		}
		if(slideSpeed>0){
			if(leftPos > (0 + startScrollPos)){
				leftPos = 0 + startScrollPos;
				okToSlide = false;
			}			
		}
		
		
		if(panelPosition==0){
			slideLeftPanelObj.style.left = leftPos + startScrollPos + 'px';
			if(pushMainContentOnSlide)document.body.style.marginLeft = leftPos - startScrollPos + panelWidth + 'px';
		}else{
			slideLeftPanelObj.style.top = leftPos + 'px';
			if(pushMainContentOnSlide)document.body.style.marginTop = leftPos - startScrollPos + panelWidth + 'px';			
			
		}
		if(okToSlide)setTimeout('slideLeftPanel(' + slideSpeed + ')',slideTimer); else {
			slideInProgress = false;
			if(slideSpeed>0)panelVisible=true; else panelVisible = false;
		}
		
	}
	
	
	function repositionHelpDiv()
	{
		if(panelPosition==0){
			var maxValue = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
			slideLeftPanelObj.style.top = maxValue;
		}else{
			var maxValue = Math.max(document.body.scrollLeft,document.documentElement.scrollLeft);
			slideLeftPanelObj.style.left = maxValue;	
			var maxTop = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
			if(!slideInProgress)slideLeftPanelObj.style.top = (maxTop - (panelVisible?0:panelWidth)) + 'px'; 		
		}
	}
	
	function cancelEvent()
	{
		return false;
	}
	function keyboardShowLeftPanel()
	{
			initSlideLeftPanel();
			return false;	
	
	}
	
	function leftPanelKeyboardEvent(e)
	{
		if(document.all)return;
		
		if(e.keyCode==112){
			initSlideLeftPanel();
			return false;
		}		
	}
	
	function setLeftPanelContent(text)
	{
		document.getElementById('leftPanelContent').innerHTML = text;
		initSlideLeftPanel(true);
		
	}
	if(!document.all)document.documentElement.onkeypress = leftPanelKeyboardEvent;
	document.documentElement.onhelp  = keyboardShowLeftPanel;