var place=0;
var pos=new Array(0, 0, 450, 885, 1316, 1750, 2186); var height=0;

function scrollit(v){ 
var start=pos[place];
  if (v>1) {
    if (navigator.appName=="Netscape") {
      height = window.innerHeight;
    } else {	
      height = document.body.clientHeight;
    }
    if (!height) { height=810; }
    if (height < 810) { height=height+34; }
	var stop=pos[v] - ((height - 750) /2);
 } else { var stop=pos[v]; }
  if (start<stop) {
    while (start<=stop) {
      start =start+30;
      window.scroll(0,Math.round(start));
    }
    window.scrollTo(0,Math.round(stop));
  } else if (start >=stop) {
   while (stop<=start) {
      start =start-30;
      window.scrollTo(0,Math.round(start));
    }
    window.scrollTo(0,Math.round(stop));
  }
  place=v;

}