怎么进行封装网站（封装网站代码）

if('http://www.****.com'!= '' || 'http://www.***.com'!=''){

var sUserAgent= navigator.userAgent.toLowerCase(); 

var bIsIpad= sUserAgent.match(/ipad/i) == 'ipad'; 

var bIsIphoneOs= sUserAgent.match(/iphone os/i) == 'iphone os'; 

var bIsMidp= sUserAgent.match(/midp/i) == 'midp'; 

var bIsUc7= sUserAgent.match(/rv:1.2.3.4/i) == 'rv:1.2.3.4'; 

var bIsUc= sUserAgent.match(/ucweb/i) == 'ucweb'; 

var bIsAndroid= sUserAgent.match(/android/i) == 'android'; 

var bIsCE= sUserAgent.match(/windows ce/i) == 'windows ce'; 

var bIsWM= sUserAgent.match(/windows mobile/i) == 'windows mobile'; 

if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) { 

if('http://www.***.com'!=''){

document.writeln('<frameset cols="100%"><frame src="http://www.***.com" /></frameset>');

}

} else {

document.writeln('<frameset cols="100%"><frame src="http://www.***.com" /></frameset>');

} 

}