// JavaScript Document

function changeContent(sectionToDisplay)
{
  	var contentItems = document.getElementsByTagName('div');
	for ( var divNumber=0; divNumber<contentItems.length; divNumber++ )
	{
	  if(contentItems[divNumber].id=='pageContent')
	  {
        if(contentItems[divNumber].title==sectionToDisplay)
		  {
			contentItems[divNumber].style.display='block';
			if(document.getElementById('moleculeSubMenu-' + sectionToDisplay))
			{
			  document.getElementById('moleculeSubMenu-' + sectionToDisplay).id='moleculeSubMenu-' + sectionToDisplay + '-important';
		    }
			
		  } 
		  else 
		  {
			contentItems[divNumber].style.display='none';
			if(document.getElementById('moleculeSubMenu-' + previousSelection + '-important'))
			{
			  if(previousSelection != sectionToDisplay)
			  {
			    document.getElementById('moleculeSubMenu-' + previousSelection + '-important').id='moleculeSubMenu-' + previousSelection;
			  }
			}
		  }
		}
	}
	previousSelection = sectionToDisplay;
}

function retrieveFromQueryString(keyName) 
{
  var queryString = window.location.search.substring(1);
  var paramaters = queryString.split('&');
  for (var i=0; i<paramaters.length; i++) 
  {
    var valueStartPosition = paramaters[i].indexOf('=');
    if (valueStartPosition > 0 && keyName == paramaters[i].substring(0,valueStartPosition)) 
	{
      return paramaters[i].substring(valueStartPosition+1);;
    }
  }
  return null;
}