var scrollInt;
	var scrTime, scrSt, scrDist, scrDur, scrInt;
	
	
	
	
	function replaceAnchorLinks()
	{
		var anchors, i, targ, targarr;
	
		if (!document.getElementById)
			return;
		
		// get all anchors
		anchors = document.getElementsByTagName("a");
		
		for (i=0;i<anchors.length;i++)
		{
		
			// check if href links to an anchor on this page
			if ( anchors[i].href.indexOf("#") != -1 && anchors[i].href.indexOf( document.URL ) != -1 )
			{
				// get name of target anchor
				

				targ = anchors[i].href.substring( anchors[i].href.indexOf("#")+1 );
				//alert(targ);
				
				// find target anchor
				targarr = document.getElementsByName( targ );
				
				
				if (targarr.length)
				{
					anchors[i].className = (targarr[0].offsetTop < anchors[i].offsetTop) ? "up" : "down";
					anchors[i].id = "__" + targ;	// save target as id with prefix (used in onclick function below)
					anchors[i].onmousedown = function () { scrollToAnchor( this.id.substring( 2 ) ); return false; };
					anchors[i].href = "#";			// rewrite href
				}
			}
			
		}
	}
	
	
	/*
	SCROLL FUNCTIONS
	*/
	
	
	
	
	function scrollPage()
	{
		scrTime += scrInt;
		if (scrTime < scrDur) {
			window.scrollTo( 0, easeInOut(scrTime,scrSt,scrDist,scrDur) );
		}else{
			window.scrollTo( 0, scrSt+scrDist );
			clearInterval(scrollInt);
		}
	}
	
	function scrollToAnchor(aname)
	{
		var anchors, i, ele;
	
		if (!document.getElementById)
			return;
		
		// get anchor
		anchors = document.getElementsByTagName("a");
		for (i=0;i<anchors.length;i++) {
			if (anchors[i].name == aname) {
				ele = anchors[i];
				i = anchors.length;
			}
		}
		
		// set scroll target
		if (window.scrollY)
			scrSt = window.scrollY;
		else if (document.documentElement.scrollTop)
			scrSt = document.documentElement.scrollTop;
		else
			scrSt = document.body.scrollTop;

		
		
		scrDist = ele.offsetTop - scrSt;
		scrDur = 500;
		scrTime = 0;
		scrInt = 15;
		
		// set interval
		clearInterval(scrollInt);
		scrollInt = setInterval( scrollPage, scrInt );
	}
	
	
	
	
	/*
	EASING FUNCTIONS
	*/
	
	function easeInOut(t,b,c,d)
	{
		return c/2 * (1 - Math.cos(Math.PI*t/d)) + b;
	}