var oneTimeImageIds = new Array();
oneTimeImageIds[0] = "hbx_hbi";
oneTimeImageIds[1] = "hbx_hbs";
oneTimeImageIds[2] = "optimostImage";
oneTimeImageIds[3] = "optimostImage_2";
oneTimeImageIds[4] = "optimostImage_3";
oneTimeImageIds[5] = "optimostImage_4";
oneTimeImageIds[6] = "optimostImage_5";
oneTimeImageIds[7] = "avenueA";


var repeatImageIds = new Array();
repeatImageIds[0] = "LPButtonImpressionImage";
repeatImageIds[1] = "LPSendRequest";

function clearRepeatImages() {

    for( var index = 0; index < repeatImageIds.length; index++ ) {
        var imageId = repeatImageIds[index];

        resetImage( imageId );
    }

    //Do this again in X seconds, since these images will be downloaded again soon
    setTimeout ( "clearRepeatImages()", 20000 );
}

function clearOneTimeImages() {
    for( var index = 0; index < oneTimeImageIds.length; index++ ) {
        var imageId = oneTimeImageIds[index];

        resetImage( imageId );
    }
}


function resetImage( name ) {    
    var domCheck = (document.getElementById) ? true : false;    
    var image;

    if (domCheck) {
        image = document.getElementsByTagName("IMG")[name];
    } 
    else if (typeof(document.getElementById)!="undefined") {
        image =  document.getElementById(name);
    } 
    else {
        for (var i = 0; i < document.images.length; i++) {
            image =  document.images[i];
            if (document.images[i].name == name) {
                image =  document.images[i];
                break;
            }
        }
    }    

    if( typeof(image) != "undefined" ) {
        image.src="http://web1.shutterfly.com/img_/misc/sp.gif";
    }
}		
		

setTimeout ( "clearOneTimeImages()", 15000 );
setTimeout ( "clearRepeatImages()", 20000 );