function setCookie( 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 : "" ) +
        ( ( secure ) ? ";secure" : "" );
    }
    
    function getCookie( 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;
    	}
    }
    
    function showPopoverOnce() {
        if (getCookie('popover_dismissed') != 'dismissed') {
            javascript:document.getElementById('popup').style.display = 'block';
            setCookie('popover_dismissed', 'dismissed', 30, '/', '', '');
        }
    }