JSはウェブページの属性を獲得して幅、高さなどを含みます。

 
function getInfo() 
{ 
var s = ""; 
s += "        ："+ document.body.clientWidth+" "; 
s += "        ："+ document.body.clientHeight+" "; 
s += "        ："+ document.body.offsetWidth + " (          )"+" "; 
s += "        ："+ document.body.offsetHeight + " (      )"+" "; 
s += "        ："+ document.body.scrollWidth+" "; 
s += "        ："+ document.body.scrollHeight+" "; 
s += "        (ff)："+ document.body.scrollTop+" "; 
s += "        (ie)："+ document.documentElement.scrollTop+" "; 
s += "        ："+ document.body.scrollLeft+" "; 
s += "        ："+ window.screenTop+" "; 
s += "        ："+ window.screenLeft+" "; 
s += "        ："+ window.screen.height+" "; 
s += "        ："+ window.screen.width+" "; 
s += "          ："+ window.screen.availHeight+" "; 
s += "          ："+ window.screen.availWidth+" "; 
s += "         "+ window.screen.colorDepth +"    "+" "; 
s += "        "+ window.screen.deviceXDPI +"   /  "+" "; 
s += " window           (ff) "+window.innerHeight+" "; 
alert (s); 
};