/*
	200708260949
	Rolf den Hartog
*/

// toggle between tabs
function set_tab_display(tab, num) {
	for(var i = 1; i <= num; i++) {
		if(tab == i) {
			document.getElementById('tab' + i).className='';
			document.getElementById('link' + i).className='active';
		}
		else {
			document.getElementById('tab' + i).className='display_none';
			document.getElementById('link' + i).className='';
		}
	}
	return false;
}

// set tab number
function set_tab_nr(nr) {
	document.getElementById('tab_nr').value=nr;
}

// switch between images/video's
function switch_media(tab, num) {
	for(var i = 1; i <= num; i++) {
		if(tab == i) {
			document.getElementById('media' + i).className='';
		}
		else {
			document.getElementById('media' + i).className='display_none';
		}
	}
	return false;
}

// focus on field
function log_in_focus() {
	document.forms['log_in'].elements['username'].focus();
}
function password_lost_focus() {
	document.forms['password_lost'].elements['username'].focus();
}
function user_new_focus() {
	document.forms['user_new'].elements['username'].focus();
}