// JavaScript Document
// JScript source code
function toggle( targetId ){

//ammend this if you add of delete a menu item
var totalNumberOfHiddenItems = 3;

if (document.getElementById){

	target = document.getElementById(targetId);

		if (target.style.display == "none"){
			target.style.display = "block";
		} else {
			target.style.display = "none";
		}
	
	// turn off the other menu items
	var idNumber = parseInt(targetId.substring(7,8));

	var loopTargetId = "sublink"
	for(i=0;i<totalNumberOfHiddenItems;i++) {
		
		currentId = loopTargetId + i
		
		if (currentId != targetId) {
			target = document.getElementById( currentId );
			target.style.display = "none";
			}
		}
	}
}

function hidedivs(numberOfDivs){
	for (i=0; i<numberOfDivs; i++){
		document.getElementById( 'sublink' + i ).style.display = "none";
	}
}

function showdiv(div){
	document.getElementById( 'sublink' + div ).style.display = "block";
}

function validateform(form){
	if (form.uname.value == "") {
		alert("please enter your name!");
		form.uname.focus();
		return false;
	}
	if ((form.uemail.value.indexOf('@') < 2) || (form.uemail.value.indexOf('.') < 4) || (form.uemail.value.charAt(form.uemail.value.length -1) == ".")){
		alert("please enter a valid email address!");
		form.uemail.focus();
		return false;
	}
	if (form.ubody.value == "") {
		alert("please enter a message!");
		form.ubody.focus();
		return false;
	}
	return true;
}

function showLayer(layerName)
{
document.getElementById(layerName).style.display = "block";
}

function hideLayer(layerName, gadget)
{

	document.getElementById(layerName).style.display = "none";

}