function Set_Cookie( name, value, expires, path, domain, secure ){
	// set time, it's in milliseconds
	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 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;
	}
}
$(document).ready(function() {
    //to add another image into the cycle, you would change this to ['0','1','2','3','4',etc.];
    //the amount of numbers in this needs to be equal to the amount of images in the /headerbg/ directory
    //if you have more numbers shown here, the script will try to load an image that isn't there
    //if all of your images from the directory are not added in to the line below, the script will not know to call them

    var imagePath = "";
    if(Get_Cookie("ImageURL") == null){
        var randomImages = ['0','1']; // edit this line to add new images into the cycle
        var rndNum = Math.floor(Math.random() * randomImages.length); 
        imagePath = "/Portals/84499/headerbg/headerbg" + rndNum + ".jpg";
    
        //This calls the set_Cookie function - the number is expiration in days
        Set_Cookie("ImageURL", imagePath, "30", '/', '', '');
        imagePath =  Get_Cookie("ImageURL");
    }
    else{
        imagePath = Get_Cookie("ImageURL");
    }
    $("#foxboro_header").css("background","url('" + imagePath + "') no-repeat");
});