function getArgs() { 
    var args = new Object(); 
    var query = location.search.substring(1); 
    var pairs = query.split("&"); 
 
    for(var i = 0; i < pairs.length; i++) { 
        var pos = pairs[i].indexOf('='); 
        if (pos == -1) continue; 
        var argname = pairs[i].substring(0,pos); 
        var value = pairs[i].substring(pos+1); 
        args[argname] = unescape(value); 
    } 
    return args; 
} 

function doBlink() {
	var blink = document.all.tags("BLINK");
	for (var i=0; i < blink.length; i++)
		blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : "";
}

function startBlink() {
	if (document.all) setInterval("doBlink()",1000);
}

function hideAllAnswer() {
	var div = document.all.tags("div");
	
	if(document.layers) { 
	    	for(i=0; i<document.layers.length; i++){ 
			if(document.layers[i].name.indexOf("answer") >= 0)  document.layers[i].style.display = "none"; 
	    	} 
	 } 
	else {
	        	for(i=0; i<div.length; i++){ 
	        		if(div[i].id.indexOf("answer") >= 0) document.all(div[i].id).style.display = "none"; 
			} 
	}
	
}

function showAllAnswer() {
	var div = document.all.tags("div");
	
	if(document.layers) { 
	    	for(i=0; i<document.layers.length; i++){ 
			if(document.layers[i].name.indexOf("answer") >= 0)  document.layers[i].style.display = "block"; 
	    	} 
	 } 
	else {
	        	for(i=0; i<div.length; i++){ 
	        		if(div[i].id.indexOf("answer") >= 0) document.all(div[i].id).style.display = "block"; 
			} 
	}
	
}

function displayAnswer(n) {
	var divname = "answer" + n;
	
	if(document.layers) { 
		document.layers[divname].style.display = (document.layers[divname].style.display=="block")? "none" : "block";
	 } 
	else {
	      document.all(divname).style.display = (document.all(divname).style.display=="block")? "none" : "block"; 
	}
	
}

/*
/////////// ƯÁ¤ ·¹À̾ º¸À̱â ////////////

function layer_show(n){ 
if(document.layers) { 
    for(i=1;i<5;i++){ 
      x="layer"+i;
          document.layers[x].visibility = "hide"; 
    } 
          y="layer"+n;
    document.layers[y].visibility= "show"; 
  } 

else {

        for(i=1;i<5;i++){
                x="layer"+i;
                document.all(x).style.visibility = "hidden"; 
        } 
  y="layer"+n;
  document.all(y).style.visibility = "visible";
        } 
}

//////////// ¸ðµÎ º¸À̱â ///////////////

function layer_showAll(){ 

if(document.layers) { 
    for(i=1;i<5;i++){ 
      x="layer"+i;
          document.layers[x].visibility = "show"; 
    } 
  } 

else {
        for(i=1;i<5;i++){
                x="layer"+i;
                document.all(x).style.visibility = "visible"; 
          } 
        }
}

//////////// ¸ðµÎ °¨Ãß±â ///////////////

function layer_hideAll(){ 

if(document.layers) { 
    for(i=1;i<5;i++){ 
      x="layer"+i;
          document.layers[x].visibility = "hide"; 
    } 
  } 

else {
        for(i=1;i<5;i++){
                x="layer"+i;
                document.all(x).style.visibility = "hidden"; 
          } 
        }
}
*/