JavaScript common functions: [Top]javascript Learning (c)--common methods

JavaScript is a love-hate language, but if you know that the inventor of JavaScript has only 10 days to invent it, you may be less entangled (the birth of JavaScript).
One, JS get page height
<script>
function GetInfo ()
{
var s = "";
S + + "Web page visible area wide:" + document.body.clientWidth;
s + + "page visible Area High:" + document.body.clientHeight;
S + + "Web page visible area wide:" + Document.body.offsetWidth + "(including the edge and the width of the scroll bar)";
s + + "page visible Area High:" + Document.body.offsetHeight + "(including the edge of the width)";
s + + "page text full text width:" + document.body.scrollWidth;
s + + "page full text High:" + document.body.scrollHeight;
S + + "Web page is rolled high (FF):" + document.body.scrollTop;
S + + "Web page is rolled high (ie):" + document.documentElement.scrollTop;
S + + "The page is rolled away to the left:" + document.body.scrollLeft;
s + + "page body part:" + window.screentop;
s + + "page body part left:" + window.screenleft;
S + + "screen resolution of High:" + window.screen.height;
S + + "screen resolution width:" + window.screen.width;
S + + screen available work area height: + window.screen.availHeight;
s = = "screen available working area width: + window.screen.availWidth;"
S + + "your screen setting is" + window.screen.colorDepth + "bit color";
S + + "your screen settings" + Window.screen.deviceXDPI + "pixel/inch";
}
</script>
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Second, password detection
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<title> Untitled Page </title>
<script type= "Text/javascript" >
function Checkpassword (passwordvalue) {This article links http://www.cxybl.com/html/wyzz/JavaScript_Ajax/20121121/34077.html