// JavaScript Document

var spam_ads = new Array (
"free funny ringtones ",
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"mp3 ringtones ",
"cheap zyban ",
"mono ringtones ",
"ericsson ringtones ",
"cyclobenzaprine online ",
"free sagem ringtones ",
"funny ringtones ",
"viagra online ",
"buy alprazolam ",
"free mp3 ringtones ",
"celexa online ",
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"free funny ringtones ",
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"real ringtones ",
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"sony ericsson ringtones ",
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"jazz ringtones ",
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"sony ringtones ",
"free ringtones ",
"online pharmacy ",
"cheap carisoprodol " );

//alert('spam_ads.length : \n' + spam_ads.length);

function spam() {
  var new_div = document.createElement('div');
    new_div.className = 'spam-ad';

  var new_a;
  var new_text;
  
  var spam_ad_d = new Array;
  var spam_ad_speed = new Array;
  var spam_ad_x = new Array;
  var spam_ad_y;
  
  var spam_ad_interval_id = new Array;
  var spam_ad_interval_ms;
  
  for( var i =0; i <= spam_ads.length -1; i++) {
  
    new_div.id = 'ad_'+i;
  
    new_div.style.position = 'absolute';
  
    spam_ad_speed[i] = 4;
    spam_ad_x[i] = Math.ceil( Math.random()*2000 - 300 );
    new_div.style.left = spam_ad_x[i] +'px';
    
    spam_ad_y = Math.ceil( Math.random()*250 +4);
    new_div.style.bottom = spam_ad_y + 'px';
    new_div.style = spam_ad_y;
    new_div.style.zIndex = 256-spam_ad_y;
    
    spam_ad_interval_ms = Math.ceil(Math.random()*6000+200);
    spam_ad_interval_id[i] = window.setInterval( "move_ad("+i+")", spam_ad_interval_ms);
    
    new_a = document.createElement('a');
    new_a.setAttribute( 'href', 'javascript://' );
    new_text = document.createTextNode( spam_ads[i] + ' ' + spam_ad_y );
    
    new_a.appendChild(new_text);
    new_div.appendChild(new_a);
    
    document.getElementById('highway-bg').appendChild( new_div );
  
  
  }
}

function background_ads() {

}


var bg_spam_num = 40;
var bg_spam_x = new Array;
  bg_spam_x[0] = new Array;
  bg_spam_x[1] = new Array;
var bg_spam_timer;

function bg_spam( parent, y ) {
  var parent_el = document.getElementById(parent);
  var bg_spam_els = new Array;
  var image_filename;
  var timeout_string

  for( var n=0; n < bg_spam_num; n++ ){
    bg_spam_els[n] = document.createElement("img");
    //image_filename = '/images/spacer_' + y + '_' + n + '.gif';
    image_filename = '/images/pixel_'+( Math.ceil(Math.random()*7) )+'.gif';
    bg_spam_els[n].setAttribute("src", image_filename);
    bg_spam_els[n].setAttribute("id", "bg-spam-" + n);

    bg_spam_els[n].style.position ="absolute";
    bg_spam_els[n].style.top = (y) + 'px';
    doc_width = get_page_width();
    bg_spam_x[y][n] = n*doc_width/bg_spam_num;
    bg_spam_els[n].style.left = bg_spam_x[y][n] + 'px';

    parent_el.appendChild( bg_spam_els[n] );

  }
  
  //move_bg_spam( bg_spam_els[n], bg_spam_num );
  //bg_spam_timer = setInterval( "move_bg_spam(y)", 1000 );
}


function move_bg_spam(y){
  var doc_width=get_page_width();
  var pos_minus_width;
  for(var n=0; n<bg_spam_num; n++){
    bg_spam_x[y][n] += Math.ceil(Math.random()*7);
    pos_minus_width = doc_width - bg_spam_x[y][n];
    if( pos_minus_width < 0 ){ bg_spam_x[y][n] = 0-pos_minus_width; }
    document.getElementById("bg-spam-" + y + '-' + n).style.left = (bg_spam_x[y][n]) + 'px';
  }
}

function midground_ads() {

}

function foreground_ads() {

}

function move_ad( id_num ){
  var ad = document.getElementById( 'ad_'+id_num );
  spam_ad_x[ id_num ] = spam_ad_x[ id_num ] + spam_ad_speed[ id_num ];
  if( spam_ad_x[ id_num ] >1500 ){
    spam_ad_x[ id_num ] = -200;
  }
  ad.style.left = spam_ad_x[ id_num ] +'px';
}