// javascript document

function startmove(obj,json,endfn){
	
		clearinterval(obj.timer);
		
		obj.timer = setinterval(function(){
			
			var bbtn = true;
			
			for(var attr in json){
				
				var icur = 0;
			
				if(attr == 'opacity'){
					if(math.round(parsefloat(getstyle(obj,attr))*100)==0){
					icur = math.round(parsefloat(getstyle(obj,attr))*100);
					
					}
					else{
						icur = math.round(parsefloat(getstyle(obj,attr))*100) || 100;
					}	
				}
				else{
					icur = parseint(getstyle(obj,attr)) || 0;
				}
				
				var ispeed = (json[attr] - icur)/8;
			ispeed = ispeed >0 ? math.ceil(ispeed) : math.floor(ispeed);
				if(icur!=json[attr]){
					bbtn = 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(bbtn){
				clearinterval(obj.timer);
				
				if(endfn){
					endfn.call(obj);
				}
			}
			
		},30);
	
	}
	
	
	function getstyle(obj,attr){
		if(obj.currentstyle){
			return obj.currentstyle[attr];
		}
		else{
			return getcomputedstyle(obj,false)[attr];
		}
	}