var hiliteClass = 'hilightedInputField'; 
var normalClass = 'inputField'; 
var hilitedElem = ''; 
var regExp = /INPUT|OPTION|SELECT|TEXTAREA/; 

var ns6=document.getElementById && !document.all 

// JavaScript Document
function addSubscription() {
  if (document.getElementById('addName').style.display == 'none') {
    document.getElementById('addName').style.display = 'block';
    document.getElementById('addEMail').style.display = 'block';
    document.getElementById('addMailList').style.display = 'block';
    document.getElementById('addNewsletter').style.display = 'block';
    document.getElementById('addSubmit').style.display = 'block';
    document.getElementById('addHTML').style.display = 'block';
  } else {
    document.getElementById('addName').style.display = 'none';
    document.getElementById('addEMail').style.display = 'none';
    document.getElementById('addMailList').style.display = 'none';
    document.getElementById('addNewsletter').style.display = 'none';
    document.getElementById('addSubmit').style.display = 'none';
    document.getElementById('addHTML').style.display = 'none';
  }
}

//Function to highlight form element 
function hilite(evt){ 
    evt = evt ? evt : window.event; 
    var currentElem = evt.srcElement ? evt.srcElement : evt.target || evt.currentTarget; 
    if(currentElem.className && regExp.test(currentElem.tagName)){ 
        //if (ns6&&eventobj.nodeType==3)eventobj=eventobj.parentNode.parentNode 
        if(hilitedElem)hilitedElem.className = normalClass; 
        currentElem.className = hiliteClass; 
        hilitedElem = currentElem; 
    } 
} 
function removeHilite(evt){ 
    evt = evt ? evt : window.event; 
    var currentElem = evt.srcElement ? evt.srcElement : evt.target || evt.currentTarget; 
    if(currentElem.className && regExp.test(currentElem.tagName)){ 
        currentElem.className = normalClass; 
    } 
}

function show($val) {
	// was `block`, but i found that setting it blank works
	// for a more diverse set of objects. 
	// i.e. a table-row shouldn't be set to block
	document.getElementById($val).style.display = ''; 
}

function hide($val) {
	document.getElementById($val).style.display = 'none';
}