var frameheight = 80;
var step=10;
var speed=40;
var autospeed=5000;
var showcontrol=true;
var rowstep=1;
var currentF=1;
var scrolling=0;
var direction=1;
var interval01, inter, SlideCount;

function GetSlideCount() {
	SlideCount=document.getElementById("main").firstChild.rows.length;
	SlideCount--;
	SlideCount/=rowstep;
}

function myscroll(dir) {
	var mainobj = document.getElementById("main");
	if ((dir<0 && mainobj.scrollTop<=frameheight*(currentF-1)) || (dir>0 && mainobj.scrollTop>=frameheight*(currentF-1))) {
		clearInterval(inter);
		mainobj.scrollTop=frameheight*(currentF-1);
		scrolling=0;
	}
	else {
		if (dir<0)
			mainobj.scrollTop-=step;
		else
			mainobj.scrollTop+=step;
	}
}

function myslide(dir) {
	if (scrolling==0) {
		scrolling=1;
		currentF+=dir;
		inter=eval("setInterval('myscroll("+dir+")',speed)");
		if (showcontrol) {
			for (i=1;i<=SlideCount;i++)
				eval("document.getElementById('led"+i+"').className='NUM1'");
			eval("document.getElementById('led"+currentF+"').className='NUM2'");
		}
	}
}

function slideto(f) {
	if (f!=currentF) {
		clearInterval(interval01);
		myslide(f-currentF);
	}
}

function autoslide() {
	if (currentF==1) direction=1;
	if (currentF==SlideCount) direction=-1;
	myslide(direction);
}

function iniautoslide() {
	if (SlideCount>1)
		interval01 = setInterval("autoslide()", autospeed);
}

function ShowSlideControl() {
	document.write('<style>');
	document.write('.num1,.num2 {width: 16px; height: 13px; text-align: center; font-family: Verdana; font-size: 9px; cursor: pointer; font-weight: bold; color: #FFFFFF}');
	document.write('.NUM1 {background: url("/inet/blog/images/01.gif") no-repeat left top}');
	document.write('.NUM2 {background: url("/inet/blog/images/02.gif") no-repeat left top}');
	document.write('</style>');
	document.write('<table cellpadding="0" border="0" align="center">');
	for (i=1;i<=SlideCount;i++) {
		document.write('<tr><td class="NUM');
		if (i==1)
			document.write("2");
		else
			document.write("1");
		document.write('" id="led'+i+'" onclick="slideto('+i+')" onmouseover="clearInterval(interval01);" onmouseout="iniautoslide();">'+i+'</td></tr>');
	}
	document.write('</table>');
}
GetSlideCount();
if (showcontrol)
	ShowSlideControl();
iniautoslide();