var os = navigator.platform;
	var brName = navigator.appName.charAt(0);
	var brVer = navigator.appVersion.charAt(0);
	var brType ="";
	if(os == "Win32"){
		if((brName == "N") && (brVer >= 4)){
			 cssSrc = '<LINK REL="stylesheet" TYPE="text/css" HREF="css/win_nc.css">' ;
				} else if((brName == "M") && (brVer >= 4)) {
			 cssSrc = '<LINK REL="stylesheet" TYPE="text/css" HREF="css/win_ie.css">' ;
		}
	} else if(os == "MacPPC"){
		if((brName == "N") && (brVer >= 4)){
			cssSrc = '<LINK REL="stylesheet" TYPE="text/css" HREF="css/mac_nc.css">' ;
		} else if((brName == "M") && (brVer >= 4)) {
			cssSrc = '<LINK REL="stylesheet" TYPE="text/css" HREF="css/mac_ie.css">' ;
		}
	}
document.write( cssSrc ) ;

// netscape bug �΍�
brVer_d=navigator.appVersion.substring(0,3);
NS4 = document.layers;

if (NS4) {
origWidth = innerWidth;
origHeight = innerHeight;
}

if(NS4&&(brVer_d>=4.1)&&(brVer<5)){
window.onresize=winreload_01;
}
else if(NS4&&(brVer_d<4.1)){
onresize = winreload_02;
}

function winreload_01(){
location.reload();
}
	
function winreload_02() {
if (innerWidth != origWidth || innerHeight != origHeight) 
location.reload();
}