// preload constant buttons
var cnst = new Array();
cnst = ["","search","cont","careers","sitemap"];
for (i=0;i<cnst.length;i++) {
	eval("C"+i+"on = new Image();"); eval("C"+i+"off = new Image();");
	eval("C"+(i)+"on.src = \"img/cnst_"+cnst[i]+"_r.gif\";");
	eval("C"+(i)+"off.src = \"img/cnst_"+cnst[i]+"_0.gif\";");
}

// preload level one buttons
var levelOne = new Array();
levelOne = ["","services","markets","about"];
for (i=0;i<levelOne.length;i++) {
	eval("A"+i+"on = new Image();"); eval("A"+i+"off = new Image();");
	eval("A"+(i)+"on.src = \"img/l1_btn_"+levelOne[i]+"_r.gif\";");
	eval("A"+(i)+"off.src = \"img/l1_btn_"+levelOne[i]+"_0.gif\";");
}

menu0on = new Image(); menu0on.src = "img/l1_btn_services_r.gif"; menu0off = new Image(); menu0off.src = "img/l1_btn_services_0.gif";
menu1on = new Image(); menu1on.src = "img/l1_btn_markets_r.gif"; menu1off = new Image(); menu1off.src = "img/l1_btn_markets_0.gif";
menu2on = new Image(); menu2on.src = "img/l1_btn_about_r.gif"; menu2off = new Image(); menu2off.src = "img/l1_btn_about_0.gif";

arrowon = new Image(); arrowon.src = "img/l2_arrow_r.gif";
arrowoff = new Image(); arrowoff.src = "img/l2_arrow_0.gif";

l3arrowon = new Image(); l3arrowon.src = "img/l3_arrow_r.gif";
l3arrowoff = new Image(); l3arrowoff.src = "img/l3_arrow_0.gif";

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
	   document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}

function popPort(file) {
  windowAttributes = "top=52,left=72,width=710,height=481"
  window.open(file,"portfolioWindow",windowAttributes)
}