
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// used in migratory bird center nest identification game to show a hint
function popup(URL,name,width,height)
{newwin=window.open(URL,name,"toolbar=0,location=0,status=0,menubar=0,resizable=1,top=100,left=100,width=350,height=350");
self.name="view_window";}

// used in migratory bird center pages to open a popup window - path, width and height as arguments
function opennew(img,x,y) {
  var msgWindow = window.open('','','Width=' + x + ',Height=' + y + 'resizable=no');
  var page='<html><head><title>Smithsonian Migratory Bird Center</title></head><body leftMargin="0" topMargin="0" border="0"><div style="POSITION: absolute; TOP: 0; LEFT: 0"><img src='+img+'></div></body></html>';
  msgWindow.document.open();
  msgWindow.document.write(page);
  msgWindow.document.close();
}

// used in migratory bird center pages to open a popup window - path, width, height, bird's name, and credit as arguments
function openbig(img,x,y,bird,credit) {
  var msgWindow = window.open('','','Width=' + x + ',Height=' + y + 'resizable=no');
  var page='<html><head><title>'+bird+' - Photo by '+credit+'</title></head><body leftMargin="0" topMargin="0" border="0"><div style="POSITION: absolute; TOP: 0; LEFT: 0"><img src='+img+'></div></body></html>';
  msgWindow.document.open();
  msgWindow.document.write(page);
  msgWindow.document.close();
}  

//used in migratory bird center, opens zoomify flash in a new window, only used on a few pages
function openzoomify(folder)
{newwin=window.open("http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/Zoomify/default.cfm?folder="+folder+'',"name","toolbar=0,location=0,status=0,menubar=0,resizable=1,top=100,left=100,width=775,height=475");
self.name="view_window";}

//used on 1 migratory bird center page, cerulean warbler survival science article
function openpopdecline()
{newwin=window.open("http://nationalzoo.si.edu/ConservationAndScience/MigratoryBirds/Science_Article/popdecline.cfm","name","toolbar=0,location=0,status=0,menubar=0,resizable=1,top=100,left=100,width=350,height=350");
self.name="view_window";}
