function doSomething(x) {
	if (x=="nav_home") c="current_home";
	else c="current";
	var y=document.getElementById('topNav').className;
	if (y)	document.getElementById(y).className="topNav";
	document.getElementById(x).className=c;
	document.getElementById('topNav').className=x;
}


function toggle(div_id) {
	var el = div_id;
	alert(e1)
	//var el = document.getElementById(div_id);
	if ( document.getElementById(el).style.display == 'none' ) {	document.getElementById(el).style.display = 'block';}
	else {document.getElementById(el).style.display = 'none';}
}


function closeSubMenuWindow() {
	var el = "popUpDiv_about";
	if (document.getElementById(el))
		{document.getElementById(el).style.display = 'none';}
	
	var el = "popUpDiv_help";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}
	
	var el = "popUpDiv_mm";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}
	
	var el = "popUpDiv_training";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}

	var el = "popUpDiv_resources";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}

	var el = "popUpDiv_media";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}

	var el = "popUpDiv_contact";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}

	var el = "popUpDiv_about";
	if (document.getElementById(el)) 
		{document.getElementById(el).style.display = 'none';}

	//var el = "popUpDiv_mm";
	//if (document.getElementById(el)) 
	//	{document.getElementById(el).style.display = 'none';}
		
}
function openSubMenuWindow(div_id) {
	closeSubMenuWindow()
	var el = "popUpDiv_" + (div_id);
	document.getElementById(el).style.display = 'block';
	if (document.getElementById(el).style.display == 'none' ) 
		{	document.getElementById(el).style.display = 'block';}
	//toggle(e1);	
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-150; //150 is half popups height
	popUpDiv.style.top = popUpDiv_height + 'px';
	popUpDiv.style.top = '0px';
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-150;//150 is half popup's width
	popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
	//blanket_size(windowname);
	//window_pos(windowname);
	toggle('blanket');
	toggle(windowname);		
}