function popup(url, name, width, height){
	if (width == null) width = 650;
	if (height == null) height = 400;
	
	var obj = window.open(url, name, "top=100, left=200, width="+width+", height="+height+", scrollbars=yes, resizable=no, status=yes");
	obj.focus();
}

function popup_big(url, name, width, height){
	if (width == null) width = 800;
	if (height == null) height = 600;
	
	var obj = window.open(url, name, "top=100, left=200, width="+width+", height="+height+", scrollbars=yes, resizable=yes, status=yes");
	obj.focus();
}

function popup_form(url, name, width, height){
	if (width == null) width = 650;
	if (height == null) height = 450;
	
	var obj = window.open(url, name, "top=100, left=200, width="+width+", height="+height+", scrollbars=yes, resizable=no, status=yes");
	obj.focus();
}

function openerOpen(url){
	opener.location.href=url;
	opener.focus();
}

function toggleImgPopup() {
	if (document.getElementById("img_popup").style.display=="none") {
		document.getElementById("img_popup").style.display="block";
	} else {
		document.getElementById("img_popup").style.display="none";
	}
	
}

function showImgPopup() {
	document.getElementById("img_popup").style.display="block";
}

function hideImgPopup() {
	document.getElementById("img_popup").style.display="none";
}