/************************************************************************************************************
	(C) www.dhtmlgoodies.com, September 2005
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/	
	var contentHeight = 0;
	var visibleContentHeight = 0;	
	var scrollActive = false;
	
	var scrollHandleObj = false;
	var scrollHandleHeight = false;
	var scrollbarTop = false;
	var eventYPos = false;
	var curPos = 0;
	var topPos = 0;
	
	var scrollbuttonActive = false;
	var scrollbuttonDirection = false;
	var scrollbuttonSpeed = 2;
	var scrollTimer = 10;
	
	var scrollMoveToActive = false;
	var scrollMoveToYPosition = false;

	function scrollDiv_startScroll(e)
	{
			if(document.all)e = event;
			eventYPos = e.clientY;
			scrollActive = true;
	}
	
	function scrollDiv_stopScroll()
	{
		scrollActive = false;
		scrollbuttonActive = false;
		scrollMoveToActive = false;
		curPos = topPos;
		
		
	}
	function scrollDiv_scroll(e)
	{
		if(!scrollActive)return;
		if(document.all)e = event;
		if(e.button!=1 && document.all)
			return;
		topPos = e.clientY - eventYPos+curPos;
		
		if(topPos<0)
			topPos=0;
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1)
			topPos = visibleContentHeight-(scrollHandleHeight+4);
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('txt').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px';
	}
	
	/*
	Click on the slider
	Move the content to the this point
	*/
	function scrolldiv_scrollMoveToInit(e)
	{		
		if(document.all)e = event;
		scrollMoveToActive = true;
		scrollMoveToYPosition = e.clientY - document.getElementById('scrolldiv_scrollbar').offsetTop;
		
		if(document.getElementById('scrolldiv_theScroll').offsetTop/1 > scrollMoveToYPosition) 
			scrollbuttonDirection = scrollbuttonSpeed*-2; 
		else
			scrollbuttonDirection = scrollbuttonSpeed*2;
		scrolldiv_scrollMoveTo();	
	}
	
	function scrolldiv_scrollMoveTo()
	{

		if(!scrollMoveToActive || scrollActive)return;
		var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
		topPos = topPos/1 + scrollbuttonDirection;
		if(topPos<0){
			topPos=0;
			scrollMoveToActive=false;
		}
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
			topPos = visibleContentHeight-(scrollHandleHeight+4);	
			scrollMoveToActive=false;
		}
		if(scrollbuttonDirection<0 && topPos<scrollMoveToYPosition-scrollHandleHeight/2)return;	
		if(scrollbuttonDirection>0 && topPos>scrollMoveToYPosition-scrollHandleHeight/2)return;			
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('txt').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 		
		setTimeout('scrolldiv_scrollMoveTo()',scrollTimer);		
	}
	
	function cancelEvent()
	{
		return false;			
	}

	function scrolldiv_scrollButton()
	{
		if(this.id=='scrolldiv_scrollDown')scrollbuttonDirection = scrollbuttonSpeed; else scrollbuttonDirection = scrollbuttonSpeed*-1;
		scrollbuttonActive=true;
		scrolldiv_scrollButtonScroll();
	}
	function scrolldiv_scrollButtonScroll()
	{
		if(!scrollbuttonActive)return;
		var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
		topPos = topPos/1 + scrollbuttonDirection;
		if(topPos<0){
			topPos=0;
			scrollbuttonActive=false;
		}
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
			topPos = visibleContentHeight-(scrollHandleHeight+4);	
			scrollbuttonActive=false;
		}	
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('txt').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 			
		setTimeout('scrolldiv_scrollButtonScroll()',scrollTimer);
	}
	function scrolldiv_scrollButtonStop()
	{
		scrollbuttonActive = false;
	}
	
	
	function scrolldiv_initScroll()
	{

		visibleContentHeight = document.getElementById('scrolldiv_scrollbar').offsetHeight;
		contentHeight = document.getElementById('txt').offsetHeight - visibleContentHeight;
		scrollHandleObj = document.getElementById('scrolldiv_theScroll');
		scrollHandleHeight = scrollHandleObj.offsetHeight;
		scrollbarTop = document.getElementById('scrolldiv_scrollbar').offsetTop;		
		document.getElementById('scrolldiv_theScroll').onmousedown = scrollDiv_startScroll;
		document.body.onmousemove = scrollDiv_scroll;
		document.getElementById('scrolldiv_scrollbar').onselectstart = cancelEvent;
		document.getElementById('scrolldiv_theScroll').onmouseup = scrollDiv_stopScroll;
		if(document.all)document.body.onmouseup = scrollDiv_stopScroll; else document.documentElement.onmouseup = scrollDiv_stopScroll;
		document.getElementById('scrolldiv_scrollDown').onmousedown = scrolldiv_scrollButton;
		document.getElementById('scrolldiv_scrollUp').onmousedown = scrolldiv_scrollButton;
		document.getElementById('scrolldiv_scrollDown').onmouseup = scrolldiv_scrollButtonStop;
		document.getElementById('scrolldiv_scrollUp').onmouseup = scrolldiv_scrollButtonStop;
		document.getElementById('scrolldiv_scrollUp').onselectstart = cancelEvent;
		document.getElementById('scrolldiv_scrollDown').onselectstart = cancelEvent;
		//document.getElementById('scrolldiv_scrollbar').onmousedown = scrolldiv_scrollMoveToInit;
		window.setTimeout("scrolldiv_initScroll()", 50);
	}

	function scrolldiv_setColor(rgbColor)
	{
		document.getElementById('scrolldiv_theScroll').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.borderColor = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.borderColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.color = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.color = rgbColor;
		document.getElementById('scrolldiv_parentContainer').style.borderColor = rgbColor;
	}

	function scrolldiv_setWidth(newWidth)
	{
		document.getElementById('dhtmlgoodies_scrolldiv').style.width = newWidth + 'px';
		document.getElementById('scrolldiv_parentContainer').style.width = newWidth-30 + 'px';		
	}

	function scrolldiv_setHeight(newHeight)
	{
		document.getElementById('dhtmlgoodies_scrolldiv').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_parentContainer').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_slider').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_scrollbar').style.height = newHeight-40 + 'px';		
	}

	function setSliderBgColor(rgbColor)
	{
		document.getElementById('scrolldiv_scrollbar').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.backgroundColor = rgbColor;
	}

	function setContentBgColor(rgbColor)
	{
		document.getElementById('scrolldiv_parentContainer').style.backgroundColor = rgbColor;
	}
	
	function setScrollButtonSpeed(newScrollButtonSpeed)
	{
		scrollbuttonSpeed = newScrollButtonSpeed;
	}

	function setScrollTimer(newInterval)
	{
		scrollTimer = newInterval;
	}
	var iii = 0;
	function scrollGO(){
	
		iii++;
			//if(iii > 4 || navigator.appName.indexOf("Microsoft") != 0){
				iii = 0;
				var cH = document.getElementById('txt').offsetHeight;
				if(cH > 380){
					scrolldiv_setColor('#317082');
					setSliderBgColor('#eff3f6');
					setContentBgColor('#eff3f6');
					setScrollButtonSpeed(1);
					setScrollTimer(15);
					scrolldiv_setWidth(480);
					scrolldiv_setHeight(380);
					scrolldiv_initScroll();
				}else{
					document.getElementById('scrolldiv_slider').style.visibility = 'hidden';
					scrolldiv_setHeight(document.getElementById('txt').offsetHeight);
					scrolldiv_setWidth(480);
				}
		//	}
	}