//http://techpatterns.com/downloads/javascript_cookies.php

function Set_Cookie( name, value, expires, path, domain, secure ) 
{
// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	
/*
if the expires variable is set, make the correct 
expires time, the current script below will set 
it for x number of days, to make it for hours, 
delete * 24, for minutes, delete * 60 * 24
*/
	if ( expires )
	{
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );

	document.cookie = name + "=" +escape( value ) +
	( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
	( ( path ) ? ";path=" + path : "/" ) + 
	( ( domain ) ? ";domain=" + domain : ".urldreamer.com" ) +
	( ( secure ) ? ";secure" : "" );
} //end of Set_Cookie( name, value, expires, path, domain, secure )

function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );
		
		
		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
	
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
} //end of Get_Cookie( check_name )

function Delete_Cookie( name, path, domain )
{
	if ( Get_Cookie( name ) ) document.cookie = name + "=" +
	( ( path ) ? ";path=" + path : '/') +
	( ( domain ) ? ";domain=" + domain : ".urldreamer.com" ) +
	";expires=Thu, 01-Jan-1970 00:00:01 GMT";
} //end of Delete_Cookie( name, path, domain ) 

function delete_all_cookies()
{
	Delete_Cookie('ref_url_first','/','.urldreamer.com');
	Delete_Cookie('ref_url_last','/','.urldreamer.com');
}

function set_all_cookies(ref_url_first,ref_url_last)
{ 
	Set_Cookie('ref_url_first',ref_url_first,365,'/','.urldreamer.com','');
	Set_Cookie('ref_url_last',ref_url_last,30,'/','.urldreamer.com','');	
}

function set_referrer_cookies() 
{
	var s=document.referrer;
	var c=s.search(/urldreamer.com/i);
	if(c==-1)
	{
		Delete_Cookie('ref_url_last','/','.urldreamer.com');
		Set_Cookie('ref_url_last',s,30,'/','.urldreamer.com','');
		if(Get_Cookie('ref_url_first')==null || Get_Cookie('ref_url_first')=='')
			Set_Cookie('ref_url_first',s,365,'/','.urldreamer.com','');		
	}
}