// JavaScript Document

timerID = null;
var active = 0;

function ScrollUp(speed){
    	if(document.getElementById){
    		if(parseInt(obj[active].style.top) < 0){
    			obj[active].style.top = parseInt(obj[active].style.top) + speed + "px";
		}
    		timerID = setTimeout("ScrollUp("+speed+")",30);
    	}
}
<!-- end of scroll up -->


<!-- scroll down -->
function ScrollDown(speed){
    	if(document.getElementById){                        
    		if(parseInt(obj[active].style.top) > document.getElementById('cont').offsetHeight - obj[active].offsetHeight){ 
    			obj[active].style.top = parseInt(obj[active].style.top) - speed + "px";
		}
    		timerID = setTimeout("ScrollDown("+speed+")",30);
    	}
}
<!-- end of scroll down -->

<!-- stop scroll -->
function ScrollStop(){
    	if(document.getElementById){
    		clearTimeout(timerID);
    	}
}
<!-- end of stop scroll -->

<!-- scroll page -->
function ScrollPageInit() {
    	if(document.getElementById){
    		obj = document.getElementById("cont").getElementsByTagName("div");
    		obj['page1'].style.visibility = "visible";
    		obj['page1'].style.top = 0;	
    	}	
    	if(document.addEventListener){
    		for(i=0;i<document.getElementsByTagName('a').length;i++){
    			document.getElementsByTagName('a')[i].style.position = "absolute";
		}
    	}
}

<!-- end of page scroll  -->