var winWidth = 0; 
	var winHeight = 0; 
	window_height = 0;
	window_width = 0;
	function findDimensions() //函数：获取尺寸
	{ 
		//获取窗口宽度 
		if (window.innerWidth) 
			winWidth = window.innerWidth; 
		else if ((document.body) && (document.body.clientWidth)) 
			winWidth = document.body.clientWidth; 

		//获取窗口高度 
		if (window.innerHeight) 
			winHeight = window.innerHeight; 
		else if ((document.body) && (document.body.clientHeight)) 
			winHeight = document.body.clientHeight; 
		
		//通过深入Document内部对body进行检测，获取窗口大小 
		if (document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth){ 
			winHeight = document.documentElement.clientHeight; 
			winWidth = document.documentElement.clientWidth; 
		} 

		winHeight_2 = document.documentElement.scrollHeight;
		//刷新背景
			document.getElementById("background").style.top = 0 +"px";
			document.getElementById("background").style.left = 0 +"px";
			document.getElementById("background").style.width = winWidth +"px";
			document.getElementById("background").style.height = winHeight_2 +"px";
		//刷新窗口位置

		document.getElementById("window").style.height = window_height +"px";
		document.getElementById("window").style.width = window_width +"px";
		document.getElementById("window").style.top = (winHeight - window_height)/2 +"px";
		document.getElementById("window").style.left = (winWidth - window_width)/2 +"px";
		
	} 

	//调用函数，获取数值 

	function closewindow(){
		window.onresize="";
		document.getElementById("engine").src= "about:blank";
		document.getElementById("background").style.display = "none";
		document.getElementById("window").style.display = "none";
	}
	
	function jumpwindow(strTemp){
		scroll(0,0);
		window.onresize=findDimensions;
		
		document.getElementById("background").style.display = "";
		document.getElementById("window").style.display = "";
		document.getElementById("engine").src = strTemp;
		//findDimensions();
	}
	function changewindowsize(w,h){
		window_height = h;
		window_width = w;
		document.getElementById("engine").width=w-12;
		document.getElementById("engine").height=h-25;
		findDimensions();
	}
	function jumpwithoutwindow(strTemp){
		document.getElementById("engine").src = strTemp;
	}


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