// Before you reuse this script you may want to have your head examined
// 
// Copyright 1999 InsideDHTML.com, LLC.  

function doBlink() {
  // Blink, Blink, Blink...
  var blink = document.all.tags("BLINK")
  for (var i=0; i < blink.length; i++)
    blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : "" 
}

function startBlink() {
  // Make sure it is IE4
  if (document.all)
    setInterval("doBlink()",1000)
}
window.onload = startBlink;



function MM_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.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];}
}
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_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 popup(url, name, width, height) {
settings="toolbar=no,location=no,directories=no,"+"status=no,menubar=no,scrollbars=yes,"+"resizable=no,width="+width+",height="+height;

MyNewWindow=window.open(url,name,settings);

}

function doNothing() {
}

// this is a special function used in eenvi02

function changeimgs(newvalue) { //v3.0
  var i,x; 

  switch (newvalue){
	case "coal":
		document.fuel.src = "../images/eenvi02_i_coal.gif";
		document.nox.src = "../images/eenvi02_i_coalnox.gif";
		document.sox.src = "../images/eenvi02_i_coalsox.gif";
		document.co.src = "../images/eenvi02_i_coalco.gif";
		document.voc.src = "../images/eenvi02_i_coalvoc.gif";
		document.pm.src = "../images/eenvi02_i_coalpm.gif";
		document.co2.src = "../images/eenvi02_i_coalco2.gif";
		break;
	case "oil":
		document.fuel.src = "../images/eenvi02_i_oil.gif";
		document.nox.src = "../images/eenvi02_i_oilnox.gif";
		document.sox.src = "../images/eenvi02_i_oilsox.gif";
		document.co.src = "../images/eenvi02_i_oilco.gif";
		document.voc.src = "../images/eenvi02_i_oilvoc.gif";
		document.pm.src = "../images/eenvi02_i_oilpm.gif";
		document.co2.src = "../images/eenvi02_i_oilco2.gif";
		break;
	case "gas":
		document.fuel.src = "../images/eenvi02_i_gas.gif";
		document.nox.src = "../images/eenvi02_i_gasnox.gif";
		document.sox.src = "../images/eenvi02_i_gassox.gif";
		document.co.src = "../images/eenvi02_i_gasco.gif";
		document.voc.src = "../images/eenvi02_i_gasvoc.gif";
		document.pm.src = "../images/eenvi02_i_gaspm.gif";
		document.co2.src = "../images/eenvi02_i_gasco2.gif";
		break;
  }	
	
}



function outLinks(myURL){
	linkTarget="_blank";
	for (var i=0; i<=(document.links.length-1); i++){
		isExternal=((document.links[i].href.indexOf("http://")!=-1)&&(document.links[i].href.indexOf(myURL)==-1))
		if(isExternal){
			document.links[i].target = linkTarget;
		}
	}
}