var speed = 0.1; //速度(毫秒)
var space = 5; //每次移动(px)
var pagewidth = 400; //翻页宽度
var fill = 0; //整体移位
var movelock = false;
var movetimeobj;
var comp = 0;
var autoplayobj = null;
getobj("list2").innerhtml = getobj("list1").innerhtml;
getobj('isl_cont').scrollleft = fill;
getobj("isl_cont").onmouseover = function(){clearinterval(autoplayobj);}
getobj("isl_cont").onmouseout = function(){autoplay();}
autoplay();
function getobj(objname){if(document.getelementbyid){return eval('document.getelementbyid("'+objname+'")')}else{return eval('document.all.'+objname)}}
function autoplay(){ //自动滚动
clearinterval(autoplayobj);
autoplayobj = setinterval('isl_godown();isl_stopdown();',5000); //间隔时间
}
function isl_goup(){ //上翻开始
if(movelock) return;
clearinterval(autoplayobj);
movelock = true;
movetimeobj = setinterval('isl_scrup();',speed);
}
function isl_stopup(){ //上翻停止
clearinterval(movetimeobj);
if(getobj('isl_cont').scrollleft % pagewidth - fill != 0){
comp = fill - (getobj('isl_cont').scrollleft % pagewidth);
compscr();
}else{
movelock = false;
}
autoplay();
}
function isl_scrup(){ //上翻动作
if(getobj('isl_cont').scrollleft <= 0){getobj('isl_cont').scrollleft = getobj('isl_cont').scrollleft + getobj('list1').offsetwidth}
getobj('isl_cont').scrollleft -= space ;
}
function isl_godown(){ //下翻
clearinterval(movetimeobj);
if(movelock) return;
clearinterval(autoplayobj);
movelock = true;
isl_scrdown();
movetimeobj = setinterval('isl_scrdown()',speed);
}
function isl_stopdown(){ //下翻停止
clearinterval(movetimeobj);
if(getobj('isl_cont').scrollleft % pagewidth - fill != 0 ){
comp = pagewidth - getobj('isl_cont').scrollleft % pagewidth + fill;
compscr();
}else{
movelock = false;
}
autoplay();
}
function isl_scrdown(){ //下翻动作
if(getobj('isl_cont').scrollleft >= getobj('list1').scrollwidth){getobj('isl_cont').scrollleft = getobj('isl_cont').scrollleft - getobj('list1').scrollwidth;}
getobj('isl_cont').scrollleft += space ;
}
function compscr(){
var num;
if(comp == 0){movelock = false;return;}
if(comp < 0){ //上翻
if(comp < -space){
   comp += space;
   num = space;
}else{
   num = -comp;
   comp = 0;
}
getobj('isl_cont').scrollleft -= num;
settimeout('compscr()',speed);
}else{ //下翻
if(comp > space){
   comp -= space;
   num = space;
}else{
   num = comp;
   comp = 0;
}
getobj('isl_cont').scrollleft += num;
settimeout('compscr()',speed);
}
}