//--public variance-----
var Msh = 0;
var Ypos = 0;
var Xpos = 0;
var mlm = 0;

//window.event.button ¡]e.which¡^1=¥ªÁä , 2=¥kÁä 

//--mouse on sliding for IE-----
function bmvIE(){
	if(Math.abs(window.event.y - Ypos)>0||Math.abs(window.event.x - Xpos)>0){
		if(window.event.button==1){
			Msh=1;
			document.body.scrollTop = document.body.scrollTop - (window.event.y - Ypos);
			document.body.scrollLeft = document.body.scrollLeft - (window.event.x - Xpos);
		}
		Ypos = window.event.y; 
		Xpos = window.event.x;
	}
}
	
//--mouse on sliding for NS6-----
function bmvNS(e){
	Msh=1; 
	if(mlm==1){
		window.scrollTo(window.scrollX-(e.pageX-XPos),window.scrollY-(e.pageY-YPos));
		YPos=e.pageY;
		XPos=e.pageX;
	}
}

//--mouse pressed for IE-----
function bwnIE(){
	Ypos=window.event.y;
	Xpos=window.event.x;
	document.oncontextmenu="";
	Msh=0;
}
//--mouse pressed for NS6
function bwnNS(e){
	if(e.which==1){
		YPos=e.pageY;
		XPos=e.pageX;
		Msh=0;
		mlm=1;
	} 
}


//--mouse released for IE-----
function bupIE(){
	Msh=0;
}
//--mouse released for NS6-----
function bupNS(e){
	if(e.which==1){
		if(Msh==0)
		document.oncontextmenu="";
	}
	mlm=0;
}

//--public event assignment-----
if(navigator.appName=="Netscape"){
	document.captureEvents(Event.MOUSEDOWN|Event.MOUSEMOVE|Event.MOUSEUP);
	document.onmousedown = bwnNS;
	document.onmousemove = bmvNS;
	document.onmouseup = bupNS;
}else{
	document.body.onmousedown = bwnIE;
	document.body.onmousemove = bmvIE;
	document.body.onmouseup = bupIE;
}