function startMove(obj,json,fn)
        {
        clearInterval(obj.timer);
                obj.timer=setInterval(function()
                        {
                                var bStop=true;
                                for(attr in json)
                                {
                                        
                        var icur=0;
                                  icur=(attr=='opacity')?Math.round(getStyle(obj,attr)*100):parseInt(getStyle(obj,attr));                                         
                                  var iSpeed=(json[attr]-icur)/8;
                                  iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);
                                 if(icur!=json[attr])
                                                          {
                                                                  bStop=false;
                                                          }
                                                  if(attr=='opacity')
                                                                  {
                                                                          obj.style.filter='alpha(opacity:'+(icur+iSpeed)+')';        
                                                                          obj.style.opacity=(icur+iSpeed)/100;
                                                                  }
                                                          else
                                                                  {                
                                                          obj.style[attr]=icur+iSpeed+'px';
                                                                  }
                                                                  
                                          
                                }
                                if(bStop)
                                        {
                                                clearInterval(obj.timer);
                                                          if(fn)
                                                          {
                                                          fn();
                                                          }
                                        
                                        }
                                
                                
                        },30);
                }
function getStyle(obj,attr)
                {
                        if(obj.currentStyle)
                                {
                                        return obj.currentStyle[attr];
                                }
                        else
                                {
                                        return getComputedStyle(obj,false)[attr];
                                }        
             }
function getByClass(oParent, sClass)
                  {
                       var aEle=oParent.getElementsByTagName('*');
                       var aResult=[];
                       var i=0;
                   
                   for(i=0;i<aEle.length;i++)
                   {
                        if(aEle[i].className==sClass)
                        {
                         aResult.push(aEle[i]);
                        }
                   }
                   
                   return aResult;
                  }