// Initialize variables.
var pictures = new Array(2);

function highlight(state, sender) {
        // Only highlight when current Highligth state in 0,1
	document.getElementById("flw_"+sender).src=pictures[state].src;
}

function selectItem(sender) {
	// De-Select
	var btnArray = new Array("sub_btnHome","sub_btnCollectie","sub_btnGalerij","sub_btnGastenboek","sub_btnContact");
	for (var i=0;i<btnArray.length;i++) {
		document.getElementById(btnArray[i]).className=0;
	}
	
	// Select the new one.
	document.getElementById("sub_"+sender).className=1;
	
}

function validateSender() {
        var objRegExp  =  /(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i;

	//check for valid email
	if (!objRegExp.test(document.frmContact.sender.value))
	{
		alert ('Geen geldig email adres, vul eerst een geldig email adres in');
		return false;
	}	
		
	return true;
}

function zoomWindow(pID, pSource) { 
  var win = window.open("zoomWindow.php?ID="+pID+"&source="+pSource, 'zoomWindow', 'height=600, width=660, top=20, left=10'); 
  win.focus(); 
  return false; 
} 

function ScrollToElement(theElement){
  var selectedPosX = 0;
  var selectedPosY = 0;


  
  while(theElement != null){
    selectedPosX += theElement.offsetLeft;
    selectedPosY += theElement.offsetTop;
    theElement = theElement.offsetParent;
  }
 window.scrollTo(selectedPosX,selectedPosY);
}

function initializeImages () {
    pictures[0] = new Image(40, 40);
    pictures[0].src = "images/pixel.gif";	
    pictures[1] = new Image(40, 40);
    pictures[1].src = "images/bloem.jpg";
}

function setFormValue (newVal) {
	document.forms.frm_collectie.subject.value=newVal;	
}


function _hash() 
{ 
  document.getElementById( 'token_hash').value = hex_md5( document.getElementById('password').value + document.getElementById('session_token').value ); 
  document.getElementById( 'password').value = ''; 
  return true; 
} 

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfHover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfHover\\b"), "");
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", sfHover);