function switchimage(newimg, oldimg) {
	var img = document.getElementById(oldimg);
	img.setAttribute('src', 'assets/images/' + newimg);
}

function callMap()
{
    var myWindow = window.open('/pages/map/mappy.php?id=1', 'Mappy', 'resizable=0,menubar=0,width=800,height=620,toolbar=0,status=0,location=0');  	
	myWindow.moveTo(myWindow.screen.width/4,myWindow.screen.height/4); 
}

function showSub(divname, linkname) {

  document.getElementById('link_portfolio').style.backgroundPosition = '0 -14px';
  document.getElementById('link_services').style.backgroundPosition = '0 -14px';
  document.getElementById('link_people').style.backgroundPosition = '0 -14px';
  document.getElementById('link_contact').style.backgroundPosition = '0 -14px';

  document.getElementById('sub_portfolio').style.display = 'none';
  document.getElementById('sub_services').style.display = 'none';
  document.getElementById('sub_people').style.display = 'none';
  document.getElementById('sub_contact').style.display = 'none';
  document.getElementById('sub_temp').style.display = 'none';

  document.getElementById(linkname).style.backgroundPosition = '0 0';
  document.getElementById(divname).style.display = 'block';
}



var min=10;
var max=18;

function increaseFontSize() {
   var p = document.getElementById('content_right');
   
      if(p.style.fontSize) {
         var s = parseInt(p.style.fontSize.replace("px",""));
      } else {
         var s = 15;
      }
      if(s!=max) {
         s += 1;
      }
      p.style.fontSize = s+"px"
   
}
function decreaseFontSize() {
   var p = document.getElementById('content_right');
      if(p.style.fontSize) {
         var s = parseInt(p.style.fontSize.replace("px",""));
      } else {
         var s = 15;
      }
      if(s!=min) {
         s -= 1;
      }
      p.style.fontSize = s+"px"
   
}

function showSubNav(nav_id) {

}