var lastSection=null;function scrollDirection(scroll,direction){var element=document.getElementById("scrollcontent");var children=element.childNodes;sectionNames=new Array();for(var i=0;i<children.length;i++){if(element.childNodes[i].className=="section"){sectionNames.push(element.childNodes[i].id);}}
if(lastSection==null){sectionFrom=0;}else{for(var i=0;i<sectionNames.length;i++){if(sectionNames[i]==lastSection){sectionFrom=i;}}}
if(direction=="next"){sectionTo=sectionFrom+1;if(sectionTo>sectionNames.length-1){sectionTo=0;}}else{sectionTo=sectionFrom-1;if(sectionTo<0){sectionTo=sectionNames.length-1;}}
sectionFrom=sectionNames[0];sectionTo=sectionNames[sectionTo];var scrollElement=document.getElementById(scroll);var posFrom=findElementPos(document.getElementById(sectionFrom));var posTo=findElementPos(document.getElementById(sectionTo));lastSection=sectionTo;scrollStart(scrollElement,scrollElement.scrollLeft,posTo[0]-posFrom[0],"horiz");}
function scrollSection(scroll,scrollFrom,scrollTo){var scrollElement=document.getElementById(scroll);var posFrom=findElementPos(document.getElementById(scrollFrom));var posTo=findElementPos(document.getElementById(scrollTo));lastSection=scrollTo;scrollStart(scrollElement,scrollElement.scrollLeft,posTo[0]-posFrom[0],"horiz");}
var scrollanim={time:0,begin:0,change:0.0,duration:0.0,element:null,timer:null};function scrollStart(elem,start,end,direction){if(scrollanim.timer!=null){clearInterval(scrollanim.timer);scrollanim.timer=null;}
scrollanim.time=0;scrollanim.begin=start;scrollanim.change=end-start;if(!scrollanim.duration){scrollanim.duration=20;}
scrollanim.element=elem;if(direction=="horiz"){scrollanim.timer=setInterval("scrollHorizAnim();",15);}else{scrollanim.timer=setInterval("scrollVertAnim();",15);}}
function scrollVertAnim(){if(scrollanim.time>scrollanim.duration){clearInterval(scrollanim.timer);scrollanim.timer=null;}else{move=sineInOut(scrollanim.time,scrollanim.begin,scrollanim.change,scrollanim.duration);scrollanim.element.scrollTop=move;scrollanim.time++;}}
function scrollHorizAnim(){if(scrollanim.time>scrollanim.duration){clearInterval(scrollanim.timer);scrollanim.timer=null;}else{move=sineInOut(scrollanim.time,scrollanim.begin,scrollanim.change,scrollanim.duration);scrollanim.element.scrollLeft=move;scrollanim.time++;}}
function findElementPos(elemFind){var elemX=0;var elemY=0;do{elemX+=elemFind.offsetLeft;elemY+=elemFind.offsetTop;}while(elemFind=elemFind.offsetParent)
return Array(elemX,elemY);}
function sineInOut(t,b,c,d){return-c/2*(Math.cos(Math.PI*t/d)-1)+b;}