function applyShadow(targetElement, shadowColor, shadowOffset)
{
	if (typeof(targetElement) != 'object')
	{
		targetElement = document.getElementById(targetElement);
	}
	var value = targetElement.firstChild.nodeValue;
	targetElement.style.position = 'relative';
	targetElement.style.zIndex = 1;
	
	var newEl = document.createElement('span');
	newEl.appendChild(document.createTextNode(value));
	newEl.className = 'shadowed';
	newEl.style.color = shadowColor;
	newEl.style.position = 'absolute';
	newEl.style.left = shadowOffset + 'px';
	newEl.style.top = shadowOffset + 'px';
	newEl.style.zIndex = -1;
	
	targetElement.appendChild(newEl);
}

function applyMenuShadow()
{
	for (var i = 1; i < 8; i++)
		applyShadow('mlink' + i, '#434343', 2);
}

function getxmlhttpobject(url) 
{
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	}
	 return req;
}

function edit_customer_details()
{
	xmlHttp = getxmlhttpobject();
	if (xmlHttp == null)
		return
	var url="editcustomer.php";
	xmlHttp.onreadystatechange=show_edit_customer; 
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function show_edit_customer()
{
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") 
		document.getElementById("edit_customer").innerHTML=xmlHttp.responseText;
}

function js_expander(id)
{
	var description = document.getElementById(id);
    if (description) {
        if (description.style.display == 'none')
			description.style.display = '';
		else
			description.style.display = 'none';
    }
}

function focus_field(obj)
{
	obj.focus();
	obj.className = 'bg_lgrey';
}
		

function validate_contact_form(obj)
{
	if (obj.bp_fname.value.length < 1) {
		alert("Förnamn måste anges");
		focus_field(obj.bp_fname);
		return false;
	}
	if (obj.bp_lname.value.length < 1) {
		alert("Efternamn måste anges");
		focus_field(obj.bp_lname);
		return false;
	}
	if (obj.bp_pnr.value.length < 6) {
		alert("Giltigt personnummer måste anges");
		focus_field(obj.bp_pnr);
		return false;
	}
	if (obj.bp_email.value.length < 1) {
		alert("E-post måste anges");
		focus_field(obj.bp_email);
		return false;
	}
	if (obj.bp_address.value.length < 1) {
		alert("Adress måste anges");
		focus_field(obj.bp_address);
		return false;
	}
	if (obj.bp_zipcode.value.length < 5) {
		alert("Postnr måste anges");
		focus_field(obj.bp_zipcode);
		return false;
	}
	if (obj.bp_city.value.length < 1) {
		alert("Stad måste anges");
		focus_field(obj.bp_city);
		return false;
	}
	obj.submit();
}


function openHW(page)
{
	var HW=window.open(page,'help','width=700,height=450,scrollbars,menubar')
}