var
// ID??
$$$ = function(element) {
	return typeof(element) == 'object' ? element : document.getElementById(element);
},
// 
RandStr = function(n, u){
	var tmStr = "abcdefghijklmnopqrstuvwxyz0123456789";
	var Len = tmStr.length;
	var Str = "";
	for(i=1;i<n+1;i++){
		Str += tmStr.charAt(Math.random()*Len);
	}
	return (u ? Str.toUpperCase() : Str);
};


var MyMarquees = new Array();
// ??
function getMyMQName(mName) {
	var name = mName==undefined ? RandStr(5) : mName;
	var myNames = ','+ MyMarquees.join(',') +',';
	
	while(myNames.indexOf(','+ name +',')!=-1) {
		name = RandStr(5);
	}
	return name;
}
function Marquee(inits) {
	var _o = this;
	var _i = inits;
	
	if(_i.obj==undefined) return;
	_o.mode   	= _i.mode==undefined ? 'x' : _i.mode;			// ??(x:, y:)
	_o.mName	= getMyMQName(_i.name);							// ?
	_o.mObj		= $$$(_i.obj);									// 
	_o.speed	= _i.speed==undefined ? 10 : _i.speed;			// ?
	_o.autoStart= _i.autoStart==undefined ? true : _i.autoStart;// ??
	_o.movePause= _i.movePause==undefined ? true : _i.movePause;// ???
	
	_o.mDo		= null;											// ?
	_o.pause	= false;										// ???
	
	// ??
	_o.init = function() {
		if((_o.mObj.scrollWidth<=_o.mObj.offsetWidth && _o.mode=='x') || (_o.mObj.scrollHeight<=_o.mObj.offsetHeight && _o.mode=='y')) return;
		
		MyMarquees.push(_o.mName);
		
		// ?
		_o.mObj.innerHTML = _o.mode=='x' ? (
			'<table width="100%" border="0" align="left" cellpadding="0" cellspace="0">'+
			'	<tr>'+
			'		<td id="MYMQ_'+ _o.mName +'_1">'+ _o.mObj.innerHTML +'</td>'+
			'		<td id="MYMQ_'+ _o.mName +'_2">'+ _o.mObj.innerHTML +'</td>'+
			'	</tr>'+
			'</table>'
		) : (
			'<div id="MYMQ_'+ _o.mName +'_1">'+ _o.mObj.innerHTML +'</div>'+
			'<div id="MYMQ_'+ _o.mName +'_2">'+ _o.mObj.innerHTML +'</div>'
		);
		
		// ????
		_o.mObj1 = $$$('MYMQ_'+ _o.mName +'_1');
		_o.mObj2 = $$$('MYMQ_'+ _o.mName +'_2');
		_o.mo1Width = _o.mObj1.scrollWidth;
		_o.mo1Height = _o.mObj1.scrollHeight;
		
		// ?
		if(_o.autoStart) _o.start();
	};
		
	// ?
	_o.start = function() {
		_o.mDo = setInterval((_o.mode=='x' ? _o.moveX : _o.moveY), _o.speed);
		if(_o.movePause) {
			_o.mObj.onmouseover = function() {_o.pause = true;} 
			_o.mObj.onmouseout = function() {_o.pause = false;}
		}
	}
	
	// ??
	_o.stop = function() {
		clearInterval(_o.mDo)
		_o.mObj.onmouseover = function() {} 
		_o.mObj.onmouseout = function() {}
	}
	
	// ??
	_o.moveX = function() {
		if(_o.pause) return;
		var left = _o.mObj.scrollLeft;
		if(left==_o.mo1Width){ 
			_o.mObj.scrollLeft = 0 ;
		}else if(left>_o.mo1Width) {
			_o.mObj.scrollLeft = left-_o.mo1Width;
		}else{ 
			_o.mObj.scrollLeft++;
		}
	};
	
	// ?
	_o.moveY = function() {
		if(_o.pause) return;
		var top = _o.mObj.scrollTop;
		if(top==_o.mo1Height){ 
			_o.mObj.scrollTop = 0 ;
		}else if(top>_o.mo1Height) {
			_o.mObj.scrollTop = top-_o.mo1Height;
		}else{ 
			_o.mObj.scrollTop++;
		}
	};
	
	_o.init();
}