function getCook(name)  {
		var dc = document.cookie;
		var prefix = name + "=";
		var begin = dc.indexOf("; " + prefix);
		if (begin == -1) {
			begin = dc.indexOf(prefix);
			if (begin != 0)
				return null;
		}
		else {
			begin += 2;
		}
		var end = document.cookie.indexOf(";", begin);
		if (end == -1) {
			end = dc.length;
		}
		return unescape(dc.substring(begin + prefix.length, end));
	}
		
	function setCook(name, value, expires, path, domain, secure)
	{
		var today = new Date();
		today.setTime( today.getTime() );
		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 : "") +
		((secure) ? "; secure" : "");
	}
	
	function getParameter(name) {
		get_string = document.location.search; 	return_value = '';
		do
		{
			name_index = get_string.indexOf(name + '=');
			if(name_index != -1)
			{
				get_string = get_string.substr(
						name_index + name.length + 1,
						get_string.length - name_index);
				
				end_of_value = get_string.indexOf('&');
				if(end_of_value != -1)
				{
					value = get_string.substr(0, end_of_value);
				}
				else
				{
					value = get_string;
				}
				if(return_value == '' || value == '')
				{
					return_value += value;
				}
				else
				{
					return_value += ', ' + value;
				}
			}
		}
		while(name_index != -1)
		{
			space = return_value.indexOf('+');
		}
		while(space != -1)
		{
			return_value = return_value.substr(0, space) + ' ' +
			return_value.substr(space + 1, return_value.length);
			space = return_value.indexOf('+');
		}
		return(return_value);
	}