function element(e){
    return document.getElementById(e);
}

function createAjax(){
    var xmlhttp;
    if (window.XMLHttpRequest) { xmlhttp = new XMLHttpRequest(); }
    else if (window.ActiveXObject) {
        try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
        catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
        catch (e) { xmlhttp = null; }}
    }
    return xmlhttp;
}


function show(object) {
    if (document.getElementById && document.getElementById(object) != null)
	 node = document.getElementById(object).style.display='block';
    else if (document.layers && document.layers[object] != null)
	document.layers[object].display='block';
    else if (document.all)
	document.all[object].style.display='block';
}

function hide(object) {
    if (document.getElementById && document.getElementById(object) != null)
	 node = document.getElementById(object).style.display='none';
    else if (document.layers && document.layers[object] != null)
	document.layers[object].display='none';
    else if (document.all)
	 document.all[object].style.display='none';
}

function showHideElement(state,object){
	var eleobj =element(object);
	showHideObject(state,eleobj);
}

function showHideObject(state,object){
    if(state){
        object.style.display       = 'block';
    }else{
        object.style.display       = 'none';
    }
}

function numbersonly(myfield, e, dec) {
	var key;
	var keychar;

	if (window.event)
		key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;

	keychar = String.fromCharCode(key);

	// control keys
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
		 return true;
	// numbers
	else if ((("0123456789").indexOf(keychar) > -1))
		return true;
	// decimal point jump
	else if (dec && (keychar == ".")) {
		myfield.form.elements[dec].focus();
		return false;
	}
	else
		return false;
}

/**
 * sprintf() for JavaScript v.0.4
 *
 * Copyright (c) 2007 Alexandru Marasteanu <http://alexei.417.ro/>
 * Thanks to David Baird (unit test and patch).
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA
 */

function str_repeat(i, m) { for (var o = []; m > 0; o[--m] = i); return(o.join('')); }

function sprintf () {
  var i = 0, a, f = arguments[i++], o = [], m, p, c, x;
  while (f) {
    if (m = /^[^\x25]+/.exec(f)) o.push(m[0]);
    else if (m = /^\x25{2}/.exec(f)) o.push('%');
    else if (m = /^\x25(?:(\d+)\$)?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(f)) {
      if (((a = arguments[m[1] || i++]) == null) || (a == undefined)) throw("Too few arguments.");
      if (/[^s]/.test(m[7]) && (typeof(a) != 'number'))
        throw("Expecting number but found " + typeof(a));
      switch (m[7]) {
        case 'b': a = a.toString(2); break;
        case 'c': a = String.fromCharCode(a); break;
        case 'd': a = parseInt(a); break;
        case 'e': a = m[6] ? a.toExponential(m[6]) : a.toExponential(); break;
        case 'f': a = m[6] ? parseFloat(a).toFixed(m[6]) : parseFloat(a); break;
        case 'o': a = a.toString(8); break;
        case 's': a = ((a = String(a)) && m[6] ? a.substring(0, m[6]) : a); break;
        case 'u': a = Math.abs(a); break;
        case 'x': a = a.toString(16); break;
        case 'X': a = a.toString(16).toUpperCase(); break;
      }
      a = (/[def]/.test(m[7]) && m[2] && a > 0 ? '+' + a : a);
      c = m[3] ? m[3] == '0' ? '0' : m[3].charAt(1) : ' ';
      x = m[5] - String(a).length;
      p = m[5] ? str_repeat(c, x) : '';
      o.push(m[4] ? a + p : p + a);
    }
    else throw ("Huh ?!");
    f = f.substring(m[0].length);
  }
  return o.join('');
}

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 (getCookie(name)) {
		document.cookie  = name + "=" + ((path) ? ";path=" + path : ";path=/") + ((domain) ? ";domain=" 
			+ domain : "") + ";expires=01-01-1980 00:00:00 GMT";
	}
}