// JavaScript Document
var obj_newwindow;
function openNewWindow(str_url) {
   obj_newwindow = window.open(str_url,'name','dependent,height=600,width=980');
   obj_newwindow.focus();
}


function screenPopupShow(str_message, str_title) {
	screenAlphaOn();
	
	obj_popup = document.createElement("div");
	obj_popup.className = "divPopup";
	obj_popup.style.top = (document.documentElement.clientHeight / 2) - 125 + "px";
	obj_popup.style.left = (document.documentElement.clientWidth / 2) - 212 + "px";

	obj_popupHeader = document.createElement("div");
	obj_popupHeader.className = "divPopupHeader";
	obj_popupHeader.innerHTML = (str_title) ? str_title : "Melding";
	obj_popup.appendChild(obj_popupHeader);

	obj_popupBody = document.createElement("div");
	obj_popupBody.className = "divPopupBody";
	obj_popupBody.innerHTML = str_message;
	obj_popup.appendChild(obj_popupBody);

	obj_popupButtonClose = document.createElement("button");
	obj_popupButtonClose.className = "divPopupButtonClose";
	obj_popupButtonClose.innerHTML = "Sluiten";
	obj_popupButtonClose.onclick = function() {
		screenPopupHide();
	}	
	obj_popup.appendChild(obj_popupButtonClose);

	document.getElementById("divScreen").appendChild(obj_popup);
	obj_popup.focus();
}

function screenPopupHide() {
	screenAlphaOff();
	
	document.getElementById("divScreen").removeChild(obj_popup);
}

function screenAlphaOn() {
	if(navigator.appName == "Microsoft Internet Explorer") {
		arr_tagElements = document.getElementsByTagName('SELECT');
		for(var i = 0; i < arr_tagElements.length; i++) {
			arr_tagElements[i].style.visibility = 'hidden';
		}
	}
	
	document.getElementById("divScreenAlpha").style.visibility = "visible";
	document.getElementById("divScreen").style.visibility = "visible";
}

function screenAlphaOff() {
	document.getElementById("divScreenAlpha").style.visibility = "hidden";
	document.getElementById("divScreen").style.visibility = "hidden";

	if(navigator.appName == "Microsoft Internet Explorer") {
		arr_tagElements = document.getElementsByTagName('SELECT');
		for(var i = 0; i < arr_tagElements.length; i++) {
			arr_tagElements[i].style.visibility = 'visible';
		}
	}
}