JavaScript

You are currently browsing the articles from KomKid.Net matching the category JavaScript.

JavaScript : set, get and delete cookie

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function deleteCookie( name, path, domain ) {
if ( Get_Cookie( name ) ) document.cookie = name + "=" + ( ( path ) ? ";path=" + path : "") +
( ( domain ) ? ";domain=" + domain : "" ) + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

Written by Komkid on August 5th, 2009 with no comments.
Read more articles on JavaScript and Programming.

JavaScript : GET variable from query string

1
2
fullURL = parent.document.URL
GetVar = fullURL.substring(fullURL.indexOf('?')+xxx, fullURL.length)

? = variable name
xxx = length of GET variable name.

Example.

1
2
fullURL = parent.document.URL
GetVar = fullURL.substring(fullURL.indexOf('topicid')+7, fullURL.length)

Written by Komkid on August 5th, 2009 with no comments.
Read more articles on JavaScript and Programming.

JavaScript : Get current year

1
2
3
4
5
var today = new Date();
ThisYear = today.getYear()+0;
if(ThisYear <= 1999){
     ThisYear = ThisYear - 100 + 2000;
}

Written by Komkid on August 5th, 2009 with no comments.
Read more articles on JavaScript and Programming.

JavaScript : Validate for empty input

Don’t :

1
if (form.input.value == "")

Do :

1
if (form.input.value.length == 0)

or

1
if (form.input.value.replace(/\s+$/, "") == "")

Written by Komkid on August 5th, 2009 with no comments.
Read more articles on JavaScript and Programming.

JavaScript : Form focus on load

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Lee Underwood | http://javascript.internet.com/ */

function getFocus() {
  // place the id below of the field you want to have focus upon page load
  var focusHere = document.getElementById("yourName");
  focusHere = focusHere.focus();
}

// Multiple onload function created by: Simon Willison
// http://simonwillison.net/2004/May/26/addLoadEvent/
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
  getFocus();
});

Written by Komkid on August 5th, 2009 with no comments.
Read more articles on JavaScript and Programming.

No older articles

Newer articles »