<!-- BLOCK ERROR SCRIPT

function blockError(){return true;}
window.onerror = blockError;

// -->

function SubMenuShow(sub_mn,num_mn)
{
	document.getElementById(sub_mn).style.visibility = 'visible';
	document.getElementById(num_mn).style.background = '#fff url(images/menu_bull_sel.gif) left no-repeat';
}

function SubMenuHide(sub_mn,num_mn)
{
	document.getElementById(sub_mn).style.visibility = 'hidden';
	document.getElementById(num_mn).style.background = 'url(images/menu_bull.gif) left no-repeat';
}


function field( id ) {
    var obj = document.getElementById( id );
    if ( !obj ) {
      alert( 'Document element not found.  id=' + id );
    }
    return obj;
  }
  
function show( id ) {
   	var TagsList = document.getElementById('contIntro');
	var divElements = TagsList.getElementsByTagName('div');
	for ( var i = 0; i < divElements.length; i++ ) {
      divElements[ i ].style.display = 'none';
	 
    }
    field( id ).style.display = 'block';
  }
  
startList = function() 
{ 
if (document.all&&document.getElementById) 
	{ 
	navRoot = document.getElementById("menunav"); 
	for (i=0; i<navRoot.childNodes.length; i++) 
		{ 
		node = navRoot.childNodes[i]; 
		if (node.nodeName=="LI") 
			{ 
			node.onmouseover=function() 
				{ 
				this.className+=" IEMhover"; 
				} 
			node.onmouseout=function() 
				{ 
				this.className=this.className.replace (" IEMhover", ""); 
				} 
			} 
		} 
	} 
} 
window.onload=startList;