function subscribe_focus()
{
	var default_email = 'enter your email';
	if(document.getElementById('YMLPO').value == default_email)
	{
		document.getElementById('YMLPO').value = '';
	}
	else if(document.getElementById('YMLPO').value == '')
	{
		document.getElementById('YMLPO').value = default_email;
	}
}


/**
* function flash_enabled()
* Enable/Disable flash.
*/
function flash_enabled(enabled)
{
	if(document.location.search)
	{
		document.location.search += '&flash=' + enabled;
	}
	else
	{
		document.location.search = 'flash=' + enabled;
	}
}


/**
* function site_tab()
* Switch between tabs.
*/
function site_tab(n)
{
	var selected_tab_id = 'tab' + n;
	var list_items = document.getElementsByTagName('li');
	var tab;
	var tab_page;
	
	for(i = 0; i < list_items.length; i++)
	{
		tab = list_items.item(i);
		
		if(tab.id.substr(0, 3) == 'tab')
		{
			if(tab.id == selected_tab_id)
			{
				tab.className = "site_activeTab";
				tab_page = document.getElementById('tabPage' + tab.id.substr(3));
				if(tab_page) tab_page.style.display = 'block';
			}
			else
			{
				tab.className = "site_tab";
				tab_page = document.getElementById('tabPage' + tab.id.substr(3));
				if(tab_page) tab_page.style.display = 'none';
			}
		}
	}
}


/**
* function validate_fields()
* Validates that all required fields have been completed.
*/
function validate_fields(frm, Fields, Messages) 
{
	// This function validates the content of fields depending on their types
	for (var i = 0; i < Fields.length ; i++)
	{
		var fieldPresent = eval('frm.' + Fields[i]);
		if(fieldPresent)
		{
			var FType = eval ('frm.' + Fields[i] + '.type') ;
			switch(FType)
			{
				case "text" :
					if(eval('frm.' + Fields[i] + '.value') == '')
					{
						alert(Messages[i]);
						eval('frm.' + Fields[i] + '.focus()');
						return false;
					}
					break;
				
				case "password" :
					if(eval('frm.' + Fields[i] + '.value') == '')
					{
						alert(Messages[i]);
						eval('frm.' + Fields[i] + '.focus()');
						return false;
					}
					break;
					
				case "textarea" :
					if(eval('frm.' + Fields[i] + '.value' ) == '')
					{
						alert(Messages[i]);
						eval('frm.' + Fields[i] + '.focus()');
						return false;
					}
					break;

				case "select-one" :
					chk = 'false';
					if(eval('frm.' + Fields[i] + '.options[frm.' + Fields[i] + '.selectedIndex].text') != '-- Please Select --' )
					{
						chk = 'true'; 
					}
					if(chk=='false')
					{
						alert(Messages[i]);
						return false;
					}
					break;

				case "select-multiple":
					if(eval('frm.' + Fields[i] + '.selectedIndex') == -1)
					{
						alert(Messages[i]);
						return false;
					}
					break;
				
				case "checkbox":
					if(eval('frm.' + Fields[i] + '.checked') == false)
					{
						alert(Messages[i]);
						return false;
					}
					break;

				default:
					switch(eval('frm.' + Fields[i] + '[0].type'))
					{
						case "radio" :
							chk = 'false';
							for(var m = 0;  m < eval('frm.' + Fields[i] + '.length'); m++)
							{
								//alert('frm.' + Fields[i] + '[' + m + '].checked');
								if(eval('frm.' + Fields[i] + '[' + m + '].checked'))
								{
									chk = 'true';
								}
							}
							if(chk == 'false')
							{
								alert(Messages[i]);
								return false;
							}
							break;

						case "checkbox":
							chk = 'false';
							for(var m = 0;  m < eval('frm.' + Fields[i] + '.length'); m++)
							{
								//alert('frm.' + Fields[i] + '[' + m + '].checked');
								if(eval('frm.' + Fields[i] + '[' + m + '].checked'))
								{
									chk = 'true'; 
								}
							}
							if(chk == 'false')
							{
								alert(Messages[i]);
								return false;
							}
							break;
					}
			}
		}
	}
	return true;
} /* validate_fields */


//<!--
// Ultimate client-side JavaScript client sniff. Version 3.03
// (C) Netscape Communications 1999-2001.  Permission granted to reuse and distribute.
// Revised 17 May 99 to add is_nav5up and is_ie5up (see below).
// Revised 20 Dec 00 to add is_gecko and change is_nav5up to is_nav6up
//                      also added support for IE5.5 Opera4&5 HotJava3 AOLTV
// Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera 4, 
//                      correct Opera 5 detection
//                      add support for winME and win2k
//                      synch with browser-type-oo.js
// Revised 26 Mar 01 to correct Opera detection
// Revised 02 Oct 01 to add IE6 detection

// Everything you always wanted to know about your JavaScript client
// but were afraid to ask. Creates "is_" variables indicating:
// (1) browser vendor:
//     is_nav, is_ie, is_opera, is_hotjava, is_webtv, is_TVNavigator, is_AOLTV
// (2) browser version number:
//     is_major (integer indicating major version number: 2, 3, 4 ...)
//     is_minor (float   indicating full  version number: 2.02, 3.01, 4.04 ...)
// (3) browser vendor AND major version number
//     is_nav2, is_nav3, is_nav4, is_nav4up, is_nav6, is_nav6up, is_gecko, is_ie3,
//     is_ie4, is_ie4up, is_ie5, is_ie5up, is_ie5_5, is_ie5_5up, is_ie6, is_ie6up, is_hotjava3, is_hotjava3up,
//     is_opera2, is_opera3, is_opera4, is_opera5, is_opera5up
// (4) JavaScript version number:
//     is_js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...)
// (5) OS platform and version:
//     is_win, is_win16, is_win32, is_win31, is_win95, is_winnt, is_win98, is_winme, is_win2k
//     is_os2
//     is_mac, is_mac68k, is_macppc
//     is_unix
//     is_sun, is_sun4, is_sun5, is_suni86
//     is_irix, is_irix5, is_irix6
//     is_hpux, is_hpux9, is_hpux10
//     is_aix, is_aix1, is_aix2, is_aix3, is_aix4
//     is_linux, is_sco, is_unixware, is_mpras, is_reliant
//     is_dec, is_sinix, is_freebsd, is_bsd
//     is_vms
//
// See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
// http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
// for detailed lists of userAgent strings.
//
// Note: you don't want your Nav4 or IE4 code  webstripperwas to "turn off" or
// stop working when new versions of browsers are released, so
// in conditional code  webstripperwas forks, use is_ie5up ("IE 5.0 or greater") 
// is_opera5up ("Opera 5.0 or greater") instead of is_ie5 or is_opera5
// to check version in code  webstripperwas which you want to work on future
// versions.

// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// Note: Opera and WebTV spoof Navigator.  We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
(agt.indexOf("; nav") != -1)) );
var is_nav6 = (is_nav && (is_major == 5));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up  = (is_ie && (is_major >= 4));
var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
// or if this is the first browser window opened.  Thus the
// variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (agt.indexOf("aol 5") != -1);
var is_aol6  = (agt.indexOf("aol 6") != -1);

var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") !