function checkBr(){
	
	var askver;
	var UA=navigator.userAgent;
	  if(UA.indexOf("MSIE") == -1){
		if(UA.indexOf("Mozilla/2") != -1){askver="Netscape Navigator2.X"}
		if(UA.indexOf("Mozilla/3") != -1){askver="Netscape Navigator3.X"}
		if(UA.indexOf("Mozilla/4") != -1){askver.value="Netscape Navigator4.X"}
	  }
	  if(UA.indexOf("Mozilla/5") != -1){
		if(UA.indexOf("Safari") != -1){askver="Safari"} 
		else{
		  if(UA.indexOf("Netscape6/") != -1){askver="Netscape Navigator6.X"}
		  else{
			if(UA.indexOf("Netscape/7") != -1){askver="Netscape Navigator7.X"}
			else{
			  if(UA.indexOf("Netscape/8") != -1){askver="Netscape Navigator8.X"}
			  else{
				if(UA.indexOf("Firefox") != -1){
					if(UA.indexOf("Win") != -1){askver="FirefoxWin"}
					else{askver="FirefoxMac"}
				}
				
				else{askver="Mozilla"}
			  }
			}
		  }
		}
	  }
	  if(UA.indexOf("MSIE") != -1){
		if(UA.indexOf("Mozilla/2") != -1){askver="Internet Explorer3.X"}
		if(UA.indexOf("Mozilla/3") != -1){askver="Internet Explorer3.X"}
		if(UA.indexOf("Mozilla/4") != -1){
			if(UA.indexOf("MSIE 6") != -1){
			  if(UA.indexOf("SV1") != -1){askver="Internet Explorer6.X SP2"}
			  else{askver="Internet Explorer6.X"}
			}
			else if(UA.indexOf("MSIE 7") != -1){askver="Internet Explorer7.X"}
			else{
			  if(UA.indexOf("MSIE 5") != -1){askver="Internet Explorer5.X"}
			  else{askver="Internet Explorer4.X"}
			}
		}
	  }
	if(UA.indexOf("Opera") != -1){
		if(UA.indexOf("Mac") != -1){askver="OperaMac"}
		else{askver="OperaWin"}
	}
return askver;

}

function setHeight() {
    var windowClientSize = getWindowClientSize();
	var uaType=checkBr();
	var defaultHeight;
    if(uaType.indexOf("OperaWin") != -1){
		defaultHeight = 819+33+133;
	}else if(uaType.indexOf("OperaMac") != -1){
		defaultHeight = 81+336+568;
	}else if(uaType.indexOf("Internet Explorer7.X") != -1){
		defaultHeight = 816+33+133;
	}else if(uaType.indexOf("Safari") != -1){
		defaultHeight = 818+33+133;
	}else if(uaType.indexOf("Firefox") != -1){
		defaultHeight = 819+33+133;
	}else{defaultHeight = 818+33+133;}

	if(windowClientSize.height >= defaultHeight){
    	document.getElementById('emptyBox').style.height = (windowClientSize.height - defaultHeight) + "px";
	}else{
		document.getElementById("emptyBox").style.height = 0+"px";
	}
}

function setHeight2() {
	// Mac IE
	if (navigator.userAgent.indexOf("Mac") != -1 && navigator.userAgent.indexOf("MSIE") !=-1) { return; }
	
    var windowClientSize = getWindowClientSize();
	var uaType=checkBr();
	var defaultHeight;
    if(uaType.indexOf("Opera") != -1){
		defaultHeight = 834+33;
	}else if(uaType.indexOf("Internet Explorer7.X") != -1){
		defaultHeight = 832+33;
	}else if(uaType.indexOf("Internet Explorer6.X") != -1){
		defaultHeight = 834+33;
	}else{defaultHeight = 835+33;}

	if(windowClientSize.height >= defaultHeight){
    	document.getElementById('emptyBox').style.height = (windowClientSize.height - defaultHeight) + "px";
	}else{
		document.getElementById("emptyBox").style.height = 0+"px";
	}
}

function setHeight3() {
	// Mac IE
	if (navigator.userAgent.indexOf("Mac") != -1 && navigator.userAgent.indexOf("MSIE") !=-1) { return; }
	
    var windowClientSize = getWindowClientSize();
	var uaType=checkBr();
	var defaultHeight;
    if(uaType.indexOf("Opera") != -1){
		defaultHeight = 834+25;
	}else if(uaType.indexOf("Internet Explorer7.X") != -1){
		defaultHeight = 832+25;
	}else if(uaType.indexOf("Internet Explorer6.X") != -1){
		defaultHeight = 834+25;
	}else{defaultHeight = 835+25;}

	if(windowClientSize.height >= defaultHeight){
    	document.getElementById('emptyBox').style.height = (windowClientSize.height - defaultHeight) + "px";
	}else{
		document.getElementById("emptyBox").style.height = 0+"px";
	}
}


function getWindowClientSize() {
	var uaType=checkBr();
    var result = {"width":0,"height":0};
    if(uaType.indexOf("Opera") != -1){
		result.height = window.innerHeight
	}else if(uaType.indexOf("Safari") != -1){
		result.height = window.innerHeight
	}else{ 
		if(document.documentElement&&document.documentElement.clientHeight)
		{
			result.height = document.documentElement.clientHeight;
			return result;
		}
		else	
		{
			result.height = document.body.clientHeight;
		}
	}
	return result;
}

function setHeightQandA() {
	// Mac IE
	if (navigator.userAgent.indexOf("Mac") != -1 && navigator.userAgent.indexOf("MSIE") !=-1) { return; }
	
    var windowClientSize = getWindowClientSize();
	var uaType=checkBr();
    if(uaType.indexOf("OperaWin") != -1){
		defaultHeight = 669+33;
	}else if(uaType.indexOf("OperaMac") != -1 || uaType.indexOf("Safari") != -1){
		defaultHeight = 668+33;
	}else if(uaType.indexOf("Internet Explorer") != -1){
				if(uaType.indexOf("Internet Explorer7.X") != -1){
					defaultHeight = 666+33;
				}else{defaultHeight = 668+33;}
	}else if(uaType.indexOf("FirefoxMac") != -1){
		defaultHeight = 668+33;
	}else{defaultHeight = 669+33;}
		

	if(windowClientSize.height >= defaultHeight){
    	document.getElementById('emptyBox').style.height = (windowClientSize.height - defaultHeight) + "px";
	}else{
		document.getElementById("emptyBox").style.height = 1+"px";
	}
}

function setHeightAnswer() {
	// Mac IE
	if (navigator.userAgent.indexOf("Mac") != -1 && navigator.userAgent.indexOf("MSIE") !=-1) { return; }
	
    var windowClientSize = getWindowClientSize();
	var uaType=checkBr();
	var a=document.getElementById("answerframe").clientHeight;

    if(uaType.indexOf("OperaWin") != -1){
		defaultHeight = 572+33 + a;
	}else if(uaType.indexOf("OperaMac") != -1 || uaType.indexOf("Safari") != -1){
		defaultHeight = 572+33 + a;
	}else if(uaType.indexOf("Internet Explorer") != -1){
				if(uaType.indexOf("Internet Explorer7.X") != -1){
					defaultHeight = 466+33 + a;
				}else{defaultHeight = 468+33 + a;}
		
	}else if(uaType.indexOf("FirefoxMac") != -1){
		defaultHeight = 572+33 + a;
	}else{defaultHeight = 574+33 + a  ;}

	if(windowClientSize.height >= defaultHeight){
    	document.getElementById('emptyBox').style.height = (windowClientSize.height - defaultHeight) + "px";
	}else{
		document.getElementById("emptyBox").style.height = 1+"px";
	}
}
/*
function initHeight(){
		n = 0;
	do {
		document.getElementById("emptyBox").style.height = 1+"px"
	} while (n < 10);
	
	if(	document.getElementById("emptyBox").style.height > 1+"px")
	}{
	}else{
	document.getElementById("emptyBox").style.height = 1+"px";
	}
}
*/