// JavaScript Document
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
	document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function changeLayer(newLayer){
	// Clear Layers
	document.getElementById('overview').style.display='none';
	document.getElementById('identification').style.display='none';
	document.getElementById('behavior').style.display='none';
	document.getElementById('portrait').style.display='none';
	// Clear Tabs
	document.getElementById('b1').style.background = 'url(/skins/whatbird/images/b1off_06.gif)';
	document.getElementById('b1b2').style.background = 'url(/skins/whatbird/images/b1b2off_07.gif)';
	document.getElementById('b2').style.background = 'url(/skins/whatbird/images/b2off_08.gif)';
	document.getElementById('b2b3').style.background = 'url(/skins/whatbird/images/b2b3off_09.gif)';
	document.getElementById('b3').style.background = 'url(/skins/whatbird/images/b3off_10.gif)';
	document.getElementById('b3b4').style.background = 'url(/skins/whatbird/images/b3b4off_11.gif)';
	document.getElementById('b4').style.background = 'url(/skins/whatbird/images/b4off_12.gif)';
	// set layer based on newLayer
	if(newLayer == 'overview'){
		// set layer
		document.getElementById('overview').style.display='block';
		document.getElementById('overheader').style.display='block';
		// set tabs
		document.getElementById('b1').style.background = 'url(/skins/whatbird/images/b1on_06.gif)';
		document.getElementById('b1b2').style.background = 'url(/skins/whatbird/images/b1on_07.gif)';
	}else if(newLayer == 'ident'){
		// set layer
		document.getElementById('identification').style.display='block';
		document.getElementById('overheader').style.display='block';
		// set Tabs
		document.getElementById('b1b2').style.background = 'url(/skins/whatbird/images/b2on_07.gif)';
		document.getElementById('b2').style.background = 'url(/skins/whatbird/images/b2on_08.gif)';
		document.getElementById('b2b3').style.background = 'url(/skins/whatbird/images/b2on_09.gif)';
	}else if(newLayer == 'behavior'){
		// set layer
		document.getElementById('behavior').style.display='block';
		document.getElementById('overheader').style.display='block';
		document.getElementById('b2b3').style.background = 'url(/skins/whatbird/images/b3on_09.gif)';
		document.getElementById('b3').style.background = 'url(/skins/whatbird/images/b3on_10.gif)';
		document.getElementById('b3b4').style.background = 'url(/skins/whatbird/images/b3on_11.gif)';
	}else if(newLayer == 'portrait'){
		// set layer
		document.getElementById('portrait').style.display='block';
		document.getElementById('overheader').style.display='none';
		document.getElementById('b3b4').style.background = 'url(/skins/whatbird/images/b4on_11.gif)';
		document.getElementById('b4').style.background = 'url(/skins/whatbird/images/b4on_12.gif)';
	}
}

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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}