var scrollInt; var scrTime, scrSt, scrDist, scrDur, scrInt; function replaceAnchorLinks()
{ var anchors, i, targ, targarr; if (!document.getElementById)
return; anchors = document.getElementsByTagName("a"); for (i=0;i<anchors.length;i++)
{ if ( anchors[i].href.indexOf("#") != -1 && anchors[i].href.indexOf( document.URL ) != -1 )
{ targ = anchors[i].href.substring( anchors[i].href.indexOf("#")+1 ); targarr = document.getElementsByName( targ ); if (targarr.length)
{ anchors[i].className = (targarr[0].offsetTop < anchors[i].offsetTop) ? "up" : "down"; anchors[i].id = "__" + targ; anchors[i].onmousedown = function () { scrollToAnchor( this.id.substring( 2 ) ); return false;}; anchors[i].href = "#";}
}
}
}
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; anchors = document.getElementsByTagName("a"); for (i=0;i<anchors.length;i++) { if (anchors[i].name == aname) { ele = anchors[i]; i = anchors.length;}
}
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 = 10; clearInterval(scrollInt); scrollInt = setInterval( scrollPage, scrInt );}
function easeInOut(t,b,c,d)
{ return c/2 * (1 - Math.cos(Math.PI*t/d)) + b;}