function switchpage(select) {
  var index;

  for(index=0; index<select.options.length; index++)
    if(select.options[index].selected)
      {
        if(select.options[index].value!="")
          window.location.href=select.options[index].value;
        break;
      }
}


function popup()
{
	window.open("prerequis.html", "cGeep", 'toolbar=no,location=no,menubar=no,status=no,scrollbars=no,resizable=no,width=800,height=710');
}

function popup_en()
{
	window.open("requirements.html", "cGeep", 'toolbar=no,location=no,menubar=no,status=no,scrollbars=no,resizable=no,width=800,height=710');
}

function showToolTip(objToShow)
{	
	clearPage(objToShow);
	document.getElementById(objToShow).style.visibility='visible';
}

function clearPage(objToKeep){
	var divElements = document.getElementsByTagName('DIV');
	var i;
	for(i = 0; i<divElements.length; i++)
	{
		if(divElements[i].className == 'clearable' && divElements[i].id != objToKeep)
		{
				divElements[i].style.visibility = 'hidden';
		}
	}
}