// top navigation rollover script

function registerImage(imgName) {
	eval(imgName + "over = new Image()");
	eval(imgName + "over.src = \"/images/nav/" + imgName + "_over.gif\"");
	eval(imgName + " = new Image()");
	eval(imgName + ".src = \"/images/nav/" + imgName + ".gif\"");
}

function registerThumbImage(imgName) {
	eval(imgName + "over = new Image()");
	eval(imgName + "over.src = \"/images/projects/thumbs/" + imgName + "_over.jpg\"");
	eval(imgName + " = new Image()");
	eval(imgName + ".src = \"/images/projects/thumbs/" + imgName + ".jpg\"");
}

function on(imgID) {
	img = document.getElementById(imgID);
	img.src = eval(imgID + "over.src");
}

function off(imgID) {
	img = document.getElementById(imgID);
	img.src = eval(imgID + ".src");
}

//register top navigation rollovers
registerImage("topnav_home");
registerImage("topnav_services");
registerImage("topnav_projects");
registerImage("topnav_ourpeople");
registerImage("topnav_news");
registerImage("topnav_contactus");



// cetered pop-up script
function thePopper(url,ht,wd) {
var winl = (screen.width - wd)/2;
var wint = (screen.height - ht)/2;
exampleWin = window.open( url, "exwin", "status=0,toolbars=0,scrollbars=1,resizable=1,menubar=0,width="+wd+",height="+ht+",left="+winl+",top="+wint+"");
if(parseInt(navigator.appVersion) >= 4){exampleWin.window.focus();}
}