// JavaScript Document
function showBox(){
	var box = document.getElementById('m_box');
	box.style.display='block';
	var box_top=(document.documentElement.clientHeight - box.offsetHeight)/2;
	var box_left=(document.documentElement.clientWidth-box.offsetWidth)/2;
	box.style.left=box_left+"px";
	if(navigator.appVersion.indexOf("MSIE 6.0")<=0) { 
		box.style.top=box_top+"px";
	} 
}
function closeDiv(){
	document.getElementById('m_box').style.display='none';
}
function StartMove(oEvent)
{
	var offset_x;
	var offset_y;
	var whichButton;
	if(document.all&&oEvent.button==1) whichButton=true; //如果是IE，并且鼠标左键按下
	else { if(oEvent.button==0)whichButton=true;}
	if(whichButton)
	{ 
		var oDiv=document.getElementById("m_box");
		offset_x=parseInt(oEvent.clientX-oDiv.offsetLeft);
		offset_y=parseInt(oEvent.clientY-oDiv.offsetTop);
		document.documentElement.onmousemove=function(mEvent)
		{    
			var eEvent;
			if(document.all) eEvent=event;
			else{eEvent=mEvent;}
			var oDiv=document.getElementById("m_box");
			var x=eEvent.clientX-offset_x;
			var y=eEvent.clientY-offset_y;
			oDiv.style.left=(x)+"px";
			oDiv.style.top=(y)+"px";
		}
	}
}
function StopMove(oEvent){document.documentElement.onmousemove=null; }