function get(id) {
	return(document.getElementById(id));
}

function confirm_action(msg, url) {
	var is_confirmed = confirm(msg);
	if (is_confirmed) {
		window.location = url;
	}
}

function openPop(url, name, width, height, otherfeatures) {
	var str = "height=" + height + ",innerHeight=" + height; 
	str += ",width=" + width + ",innerWidth=" + width;
	if (window.screen) { 
		var ah = screen.availHeight - 30; 
		var aw = screen.availWidth - 10;
		var xc = (aw - width) / 2; 
		var yc = (ah - height) / 2;
		str += ",left=" + xc + ",screenX=" + xc; 
		str += ",top=" + yc + ",screenY=" + yc; 
	}
	newwin = window.open(url, name, str + ',' + otherfeatures);
	if (parseInt(navigator.appVersion) >= 4) { 
		setTimeout('newwin.focus();',250); 
	}
}

function printPage(){
	window.parent.focus();
	window.print();
	window.close();
}

function sub(id, what) {
	subsub(0,0);
	if(what == 0) {
		for(var n = 0; n <= 6; n++) {
			get('nav_sub_'+n).style.visibility = 'hidden';
			get('nav_sub_'+n).style.display = 'none';
		}
	} else {
		for(var n = 0; n <= 6; n++) {
			if (n != id) {
				get('nav_sub_'+n).style.visibility = 'hidden';
				get('nav_sub_'+n).style.display = 'none';	
			}	
		}
		get('nav_sub_'+id).style.visibility = 'visible';
		get('nav_sub_'+id).style.display = 'block';
	}
}

function subsub(id, what) {
	if(what == 0) {
		for(var n = 0; n <= 6; n++) {
			get('nav_subsub_'+n).style.visibility = 'hidden';
			get('nav_subsub_'+n).style.display = 'none';	
		}
	} else {
		for(var n = 0; n <= 6; n++) {
			if (n != id) {
				get('nav_subsub_'+n).style.visibility = 'hidden';
				get('nav_subsub_'+n).style.display = 'none';	
			}	
		}
		get('nav_subsub_'+id).style.visibility = 'visible';
		get('nav_subsub_'+id).style.display = 'block';
	}	
}

function checkbox_set (chkname, me) {
	var input_tags = document.getElementsByTagName("input");
	for (i=0; i<input_tags.length; i++) {
		elt = input_tags[i];
		if (elt.name == chkname) {
			if (elt.id == me) elt.checked = true; 
			else elt.checked = false;
		}
	}
	return true;	
}

function showHideDiv(elemId) {
	var part2 = document.getElementById(elemId);
	if ( part2.className == 'hidden' ) {
		part2.className = 'visible';
	} else {
		part2.className = 'hidden';
	}
} 

function showHideDiv2(elemId, kind) {
	var part2 = document.getElementById(elemId);	
	part2.className = kind;
}