bAgent = navigator.userAgent;
	bName = navigator.appName;
	bVer = parseInt(navigator.appVersion);
	bPlugins = navigator.plugins;
	Vmajor = parseInt(navigator.appVersion);	// ex. 3
	Vminor = parseFloat(navigator.appVersion);	// ex. 3.01

	Win = (bAgent.indexOf("Win",0) != -1);
	Mac = (bAgent.indexOf("Mac",0) != -1);
	MacOSX = ((bAgent.indexOf("Mozilla") != -1) && (bAgent.indexOf("Mac OS X") != -1));
	if(bPlugins){for(i=0;i<bPlugins.length;i++){if(Mac && (bPlugins[i].filename.indexOf("QuickTime Plugin.plugin")!=-1)){MacOSX=true;}}}
	IE = (bName == "Microsoft Internet Explorer");
	NS = (bName == "Netscape")
	Moz = (bAgent.indexOf("Gecko") != -1);
	ICAB = (bAgent.indexOf("iCab",0) != -1);
	OPERA = (bAgent.indexOf("Opera",0) != -1);
	NS6 = (bAgent.indexOf("Netscape6") != -1);
	MacIE5 = ((Mac && bAgent.indexOf('MSIE 5',0) != -1) || (Mac && IE && bVer > 4));
	MacIE4 = ((Mac && bAgent.indexOf('MSIE 4.',0) != -1));
	MacIE3 = ((Mac && bAgent.indexOf('MSIE 3.',0) != -1));

	/*user-defined object check*/
	/*NS4 = 1, IE4 = 2, IE5+ = 3, NS6 = 4, others = 0*/
	checkObj = document.all?(document.getElementById?3:2):(document.getElementById?4:(document.layers?1:0));
	function initObj(){
		checkObj = document.all?(document.getElementById?3:2):(document.getElementById?4:(document.layers?1:0));
	}



	function getWindowXOffset(){
		if(checkObj == 2 || checkObj == 3){
			return document.body.scrollLeft;
		}else if(checkObj == 1 || checkObj == 4){
			return window.pageXOffset;
		}else{
			return 0;
		}
	}

	function getWindowYOffset(){
		if(checkObj == 2 || checkObj == 3){
			return document.body.scrollTop;
		}else if(checkObj == 1 || checkObj == 4){
			return window.pageYOffset;
		}else{
			return 0;
		}
	}


	/*PageScroller*/
	var pageScrollTimer;
	function pageScroll(toX,toY,frms,cuX,cuY) {
		if(pageScrollTimer) clearTimeout(pageScrollTimer);
		if(!toX || toX < 0) toX = 0;
		if(!toY || toY < 0) toY = 0;
		if(!cuX) cuX = 0 + getWindowXOffset();
		if(!cuY) cuY = 0 + getWindowYOffset();
		if(!frms) frms = 6;

		cuX += (toX - getWindowXOffset()) / frms;
		if (cuX < 0) cuX = 0;
		cuY += (toY - getWindowYOffset()) / frms;
		if (cuY < 0) cuY = 0;
		posX = Math.floor(cuX);
		posY = Math.floor(cuY);
		window.scrollTo(posX, posY);
		if(posY < 1){
			window.scroll(0,0);
		}else if(posX != toX || posY != toY){
			pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
		}else{
			clearTimeout(pageScrollTimer);
		}
	}

	function toAnchor(idName) {
		if(checkObj == 1 || checkObj == 2 || checkObj == 3 || checkObj == 4){
			if(!!idName){
				anchorX = 0;
				anchorY = getTagTop(idName);
				mouseX = getWindowXOffset();
				mouseY = getWindowYOffset();
				endY = endPositionY();
				if(anchorY < 1){
					location.hash = idName;
				}else if(anchorY > endY){
					pageScroll(anchorX,endY,10,mouseX,mouseY);
				}else{
					pageScroll(anchorX,anchorY,10,mouseX,mouseY);
				}
			}else{
				pageScroll(0,0,10);
			}
		}else{
			if(!!idName){
				location.hash = idName;
			}else{
				location.hash = "top";
			}
		}
	}