var posX=0;
var endX=0;
var displayW=500;
var speed=10;
var timer;

function startmove(turn){
slideltem=document.getElementByld("slideltems");
if(!timer){
if(turn=="right"){
if(posX<=(slideltem.offsetWidth-displayW)*-1){
endX=(slideltem.offsetWidth-displayW)*-1;
}else{
endX=posX-displayW;
}
}else{
if(posX>=0){
endX=0;
}else{
endX=posX+displayW;
}
}
timer=setlnterval("move()",1);
}
}


function move(){
posX+=(endX-posX)/speed;
if(Math.abs(endX-posX)<=1){
document.getElementByld("slideltems").style.left=endX+"px";
posX=endX;
clearlnterval(timer);
timer=undefined;
}else{
document.getElementByld("slideltems").style.left=posX+"px";
}
}