function ast_mouseover1(e){
  ast_mouseoverad = "a1";
}
function ast_mouseover2(e){
  ast_mouseoverad = "a2";
}
function ast_mouseover3(e){
  ast_mouseoverad = "a3";
}
function ast_mouseover4(e){
  ast_mouseoverad = "a4";
}
function ast_mouseout(e){
  ast_mouseoverad = null;
}
function ypn_mouseover1(e){
  ast_mouseoverad = "y1";
}
function ypn_mouseover2(e){
  ast_mouseoverad = "y2";
}
function ypn_mouseover3(e){
  ast_mouseoverad = "y3";
}
function ypn_mouseover4(e){
  ast_mouseoverad = "y4";
}
function ast_docunload(e){
  if(ast_mouseoverad!=null){
    ast_aslog(e, ast_mouseoverad);
  }
}

function ast_aslog1(e){
  ast_aslog(e, "a1");
}
function ast_aslog2(e){
  ast_aslog(e, "a2");
}
function ast_aslog3(e){
  ast_aslog(e, "a3");
}
function ast_aslog4(e){
  ast_aslog(e, "a4");
}

function ast_aslog(e, ad_id) {
    window.focus();
    trackit = 0;
    if(window.status && (window.status != lastStatus)){
      trackit = 1;
      lastStatus = window.status;
    }
    else if(ast_mozilla){
      trackit = 1;
      lastStatus = "(Unknown/Mozilla)";
    }
    if (trackit)
    {
        var bug = new Image();
		if (lastStatus.indexOf('go to') == 0){ 
			lastStatus = lastStatus.substring(6); 
		}
        bug.src = '/track/ad_click' +
                    '?r=' + escape(document.location) +
                    '&d=' + escape(lastStatus) +
                    '&a=' + escape(ad_id) + 
					'&dt=' + new Date().valueOf();
    }
}

function ypn_aslog1(e){
  ast_aslog(e, "y1");
}
function ypn_aslog2(e){
  ast_aslog(e, "y2");
}
function ypn_aslog3(e){
  ast_aslog(e, "y3");
}
function ypn_aslog4(e){
  ast_aslog(e, "y4");
}

var lastStatus = '';
var ast_mouseoverad = null;
var ast_mozilla = false;
var elements;
elements = document.getElementsByTagName("iframe");
c = 0;
y = 0;
var agnt = navigator.userAgent.toLowerCase();
var ast_altclicks = (document.layers | agnt.indexOf("firefox")>-1 | agnt.indexOf("mozilla")>-1) && agnt.indexOf("msie")==-1;
if (ast_altclicks){
  if(document.layers){
    window.captureEvents(Events.ONUNLOAD);
  }
  window.onunload = ast_docunload;
  ast_mozilla = true;
}
for (var i = 0; i < elements.length; i++) {
    if(elements[i].src.indexOf('googlesyndication.com') > -1)
    {
        if (document.layers)
        {
            elements[i].captureEvents(Events.ONFOCUS);
            elements[i].captureEvents(Events.ONMOUSEOVER);
            elements[i].captureEvents(Events.ONMOUSEOUT);
        }
        switch(c){
          case 0:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ast_mouseover1;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ast_aslog1;
            }
            break;
          case 1:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ast_mouseover2;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ast_aslog2;
            }
            break;
          case 2:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ast_mouseover3;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ast_aslog3;
            }
            break;
          case 3:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ast_mouseover4;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ast_aslog4;
            }
            break;
        }
        c++;
    }
    else if(elements[i].src.indexOf('ypn-js.overture.com') > -1){
        switch(y){
          case 0:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ypn_mouseover1;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ypn_aslog1;
            }
            break;
          case 1:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ypn_mouseover2;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ypn_aslog2;
            }
            break;
          case 2:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ypn_mouseover3;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ypn_aslog3;
            }
            break;
          case 3:
            if (ast_altclicks)
            {
              elements[i].onmouseover = ypn_mouseover4;
              elements[i].onmouseout = ast_mouseout;
            }
            else{
              elements[i].onfocus = ypn_aslog4;
            }
            break;
        }
        y++;
    }
}