//see jsutil.py for generation of verifier Array and verifier funcs
//The function returns 1 if Internet Explorer is not adjusting the scale of the screen
function ieScaleFactor() {
    var nScaleFactor = screen.deviceXDPI / screen.logicalXDPI;
    return nScaleFactor;
}

function print_page()
{
	pl = document.getElementById('print_lnk');
	if (pl) {
		pl.style.display='none';
	}
	window.print();
	window.close();
}

function verifyform()
{
	if (typeof(verifiers)=="undefined") {
		return true;
	}
	ok = true;
	var errmsg = '';
	for (var i=0; i < verifiers.length; i++) {
		verifier = verifiers[i]
		elem = document.getElementById(verifier.id);
		valid = verifier.call(elem);
		if (!valid) {
			errmsg = errmsg+verifier.errmsg+'<br/>';
			ok = false;
		}
	}
	if (ok) {
		return true;
	}
	emdiv = document.getElementById('errormsg')
	if (emdiv) {
		emdiv.innerHTML = errmsg;
	}
	return false	
}

function getformvalues(formid)
{
	ff = document.getElementById(formid);
	if (!ff) {
		alert('No such form');
		return {}
	}
	args = {}
	for (x in ff.elements)
	{
		args[ff.elements[x].name]=ff.elements[x].value
	}
	return args
}

function createhidden(key, value) {
	kk = document.createElement('input')
	kk.setAttribute('name', key)
	kk.setAttribute('value', value)
	kk.setAttribute('type', 'hidden')
	return kk;
}
function submitform(formid, args) 
{
	ff = document.getElementById(formid);
	if (!verifyform(ff)) {
		return
	}
	for (key in args) {
		ff.appendChild(createhidden(key, args[key]))
	}
	ff.submit()
}
//without verification
function submitform2(formid, args)
{
	ff = document.getElementById(formid);
	for (key in args) {
		ff.appendChild(createhidden(key, args[key]))
	}
	ff.submit()
}

function popup_img(image_uri, w, h)
{
	specs=''
	/*center window*/
	ypos= screen.height/2- h/2
	if (ypos<0)
	{
		ypos=0
	}
	xpos=screen.width/2- w/2
	if (xpos<0) {
		xpos=0
	}
	specs=specs+'width='+(w*15/14)+',height='+(h*15/14)+',left='+xpos+',top='+ypos
	window.open(image_uri, '',specs)
}

function popup_form(form_uri, window_name) {
	specs=''
	/*position window todo*/
	//ypos=screen.height/4
	ypos=0
	xpos=0// screen.width/4
	w=screen.width*8/9
	h=screen.height*6/7
	//specs=specs+'resizable=1,width='+w+',height='+h+',left='+xpos+',top='+ypos
	specs=specs+'resizable=1,width='+w+',left='+xpos+',top='+ypos
	//specs=specs+'channelmode=1'
	return window.open(form_uri, window_name,specs)
}

function popup_gallery(gallery_uri) {
	specs=''
	ypos=screen.height/2-200
	xpos= screen.width/2-200
	w=500
	h=740
	specs=specs+'width='+w+',height='+h+',left='+xpos+',top='+ypos
	window.open(gallery_uri, '',specs)
}

function popup_help(help_uri) {
	specs=''
	/*position window in upper right part of screen (1/6 of screen estate)*/
	ypos=0
	xpos= screen.width*2/3 -5
	w=screen.width/3
	h=screen.height/2
	specs=specs+'resizable=1,width='+w+',height='+h+',left='+xpos+',top='+ypos
	window.open(help_uri, '',specs)
}

function popup_print(print_uri) {
	specs='scrollbars=1,channelmode=1,menubar=1,'
	/*position window in upper right part of screen (1/6 of screen estate)*/
	ypos=0
	xpos= 0
	w=1024
	h=700
	if (screen.width< 1024) {
		w=screen.width
	} 
	if (screen.height< 700) {
		h=screen.height
	} 
	specs=specs+'width='+w+',height='+h+',left='+xpos+',top='+ypos
	window.open(print_uri, 'print',specs)
}

function popup(uri, window_name, pos, w, h, resizable) {
	if (!w) { w = screen.width/2; }
	if (!h) { h = screen.height/2; }
	var left = 0;
	var top = 0;
	if (pos=='topleft') {
		
	} else if (pos=='topright') {
		left = screen.width - w - 5;
	}
	specs = 'width='+w+',height='+h+',left='+left+',top='+top;
	if (resizable) {
		specs += ',resizable=1, scrollbars=1';
	}
	window.open(uri, window_name, specs);
}

function windowHeight() {
	if (typeof(window.innerHeight) == 'number') {
		return window.innerHeight;
	} else if(document.documentElement &&
					(document.documentElement.clientHeight) ) {
		return document.documentElement.clientHeight;
	} else if (document.body && (document.body.clientHeight)) {
		return document.body.clientHeight;
	}
}

function windowWidth() {
	if (typeof(window.innerWidth) == 'number') {
		return window.innerWidth;
	} else if(document.documentElement &&
					(document.documentElement.clientWidth) ) {
		return document.documentElement.clientWidth;
	} else if (document.body && (document.body.clientWidth)) {
		return document.body.clientWidth;
	}
}

function bookmarksite(title, url) {
if (document.all) window.external.AddFavorite(url, title);
else if (window.sidebar) window.sidebar.addPanel(title, url, "");
}