ify">,. , BODY, onLoad.  
. ,, Internet Explorer, Netscape Navigator Opera,. 
  (),.. 
  URL (Uniform Resource Locator) - Web -. Web URL. HREF A, SRC IMG, ACTION FORM .. URL,,, FTP- ftp, Gopher- - gopher, - smtp. URL: # justify gt; URL http - (http). 
 . ,. Web-. JavaScript. HTTP, JavaScript, URL - JavaScript: 
   lt; A HREF=«JavaScript: JavaScript _» gt; lt;/A gt; 
  lt; IMG SRC=«JavaScript: JavaScript _» gt; 
   «JavaScript_» - JavaScript, -. 
 , «!!!»: 
   lt; A HREF=«JavaScript: alert ( !!! );» gt; !!! lt;/A gt; 
   submit: 
   lt; FORM NAME=f METHOD=post=«JavaScript: window.document.fiVALUE= raquo ;; void (0); " gt; 
  lt; INPUT TYPE=submit VALUE=Click gt; 
  lt;/FORM gt; 
   URL. , JavaScript, Netscape Navigator Internet Explorer,. 
 , (handler),,. , Click: 
   lt; FORM gt; lt; INPUT TYPE=button VALUE=«»=«window.alert ( intuit );» gt; lt;/FORM gt; 
   SCRIPT - JavaScript-. SCRIPT Server Side Includes, ... 
  HTML-, SCRIPT. SCRIPT HTML- SCRIPT. 
  SCRIPT: 
 . HTML-; 
 . HTML-. 
 ,,.- JavaScript-. 
  -. JavaScript Window, ... ,,: 
 , JavaScript ().. function,,. , JavaScript-. 
  JavaScript. ,. , Window Document location. Window Location, Document -, URL. 
 ,. 
 ,: toString (). location, window.location,,: 
   lt; SCRIPT gt; .write (window.location) ;. write (« lt; BR gt;») ;. write (document.location); 
  lt;/SCRIPT gt; 
   -,.:
   lt; SCRIPT gt;=toString (window.location);=toString (document.location);=window.location.href; .write (w.length) ;. write (d.length) ;. write (h.length); 
  lt;/SCRIPT gt; 
 . 
 , URL, location,. 
  Window - JavaScript. Window Frame. 
  Window -, Frame -, HTML- FRAMESET FRAME. 
				
				
				
				
			  JavaScript. JavaScript,: 
   var myString= Hello World! raquo ;; myString=new String ( Hello World! ); 
  . ,.:
   var n=5; s=new String (n * 20); 
   s «100». s n * 20, s 100. JavaScript,,. 
  (var n=new String ( Hello World )) Internet Explorer, (var n= Hello World ).. ,. 
 , eval (). 
 ,?:
   var n= The dog took it s bone outside '; 
  , «it s». «The dog took it», «s bone outside «. JavaScript (,), [15]. 
 . ,.. , . JavaScript,,,,. 
   var n=«The dog took it s bone outside»; n= The dog took it s bone outside raquo ;; 
   ,: ''. 
  indexOf lastIndexOf. 
 ,. indexOf,. , IndexOf - 1. lastIndexOf indexOf,,. 
 , indexOf lastIndexOf - 1,, -,. 
 . 
  · charAt (),. 
  Test arAt (1)= e . 
  · length. Test .length=4. 
  · substring (). Test .substring (1, 2)= e raquo ;. 
  · substr () substring (),,. , Substr (). 
  · Test .substr (1, 2)= es raquo ;; 
  · toLowerCase () toUpperCase (),:. 
  Test .toUpperCase ()= TEST raquo ;; 
 : 
   alert ( This is a Test .indexOf ( T ));// 0 ( This is a Test .lastIndexOf ( T ));// 10 ( This is a Test arAt (5));// I ( This is a Test .length);// 14 ( This is a Test .substring (5, 9));// Is a ( This is a Test .substr (5, 9));// Is a Test ( This is a Test .toUpperCase ());// THIS IS A TEST ( This is a Test .toLowerCase ());// This is a test 
  ,, eval (). eval (), JavaScript. 
   eval («alert ( Hello World! )»); 
   «Hello World!», alert. ,,. 
  Math JavaScript,,. Math.PI,, 3.141592653589793. (sin, cos, tan, ..), (Math.floor,, Math.ceil,, Math.round «»). 
 ,,. JavaScript,,,,,. ,, 5,,, ««. 
   var n=parseInt («3.14»);// 3n=parseFloat («3.14»)//3.14 
   parseInt. «3.14», «3», «3.00001» «3.9999» 3. 
  parseFloat,,. «». , ParseInt («3a») 3. 
 ,,: 
   var n=5; m=n.toString (); m=n + raqu...