// function to find the position of any element
function findPos(obj) {
  var objt = document.getElementById(obj);
	var curleft = curtop = 0;
	if (objt.offsetParent) {
		curleft = objt.offsetLeft;
		curtop = objt.offsetTop;
		while (objt = objt.offsetParent) {
			curleft += objt.offsetLeft;
			curtop += objt.offsetTop;
		}
	}
	return [curleft,curtop];
}

// function to show the correct second level nav images when the mouse 'hovers'
function activateTwoSub(num) {
  if (num == 1) document.getElementById('nav2_research').style.backgroundPosition = '0px -36px';
  else if (num != 1) document.getElementById('nav2_research').style.backgroundPosition = '0px -18px';

  if (num == 2) document.getElementById('nav2_design').style.backgroundPosition = '0px -36px';
  else if (num != 2) document.getElementById('nav2_design').style.backgroundPosition = '0px -18px';

  if (num == 3) document.getElementById('nav2_prototyping').style.backgroundPosition = '0px -36px';
  else if (num != 3) document.getElementById('nav2_prototyping').style.backgroundPosition = '0px -18px';

  if (num == 4) document.getElementById('nav2_development').style.backgroundPosition = '0px -36px';
  else if (num != 4) document.getElementById('nav2_development').style.backgroundPosition = '0px -18px';

  if (num == 5) document.getElementById('nav2_operations').style.backgroundPosition = '0px -36px';
  else if (num != 5) document.getElementById('nav2_operations').style.backgroundPosition = '0px -18px';
}

// function to show the correct second level nav images when the mouse 'outs'
function deActivateTwoSub(num) {
  if (num == 1) document.getElementById('nav2_research').style.backgroundPosition = '0px -36px';
  else if (num != 1) document.getElementById('nav2_research').style.backgroundPosition = '0px 0px';

  if (num == 2) document.getElementById('nav2_design').style.backgroundPosition = '0px -36px';
  else if (num != 2) document.getElementById('nav2_design').style.backgroundPosition = '0px 0px';

  if (num == 3) document.getElementById('nav2_prototyping').style.backgroundPosition = '0px -36px';
  else if (num != 3) document.getElementById('nav2_prototyping').style.backgroundPosition = '0px 0px';

  if (num == 4) document.getElementById('nav2_development').style.backgroundPosition = '0px -36px';
  else if (num != 4) document.getElementById('nav2_development').style.backgroundPosition = '0px 0px';

  if (num == 5) document.getElementById('nav2_operations').style.backgroundPosition = '0px -36px';
  else if (num != 5) document.getElementById('nav2_operations').style.backgroundPosition = '0px 0px';
}