String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/g,"");
}

Array.prototype.in_array = function(p_val) {
	for(var i = 0; i < this.length; i++)
		if(this[i] == p_val)
			return true;
	return false;
}


var guntypes = new Array('h','s','r','m');
var divisions = new Array();
divisions[0] = new Array('--All--', 'OPEN','STANDARD','MODIFIED','PRODUCTION','REVOLVER (STANDARD)');
divisions[1] = new Array('--All--', 'OPEN','MODIFIED','STANDARD','STANDARD MANUAL');
divisions[2] = new Array('--All--', 'OPEN SEMI-AUTO','STANDARD SEMI-AUTO','OPEN MANUAL ACTION','STANDARD MANUAL ACTION');
divisions[3] = new Array('--All--');

function fixDiv() {
	var div = document.getElementById('div');
	var guntype = document.getElementById('guntype');
	var gtype = guntype.options[guntype.selectedIndex].value;
	var index = -1;
	var value = '';

	for(var i=0; i<guntypes.length; i++)
		if(guntypes[i] == gtype) {
			index = i;
			break;
		}

	if (index > -1) {
		div.options.length = 0;
		for (divindex in divisions[index]) {
			value = divisions[index][divindex] == '--All--' ? '' : divisions[index][divindex];
			div.options[divindex]=new Option(divisions[index][divindex],value);
		}
	}
}

function FixGuntype() {
	var tid = document.forms[0].tid.options[document.forms[0].tid.selectedIndex].value;
	var guntype = document.forms[0].guntype;

	guntype.options.length = 0;

	if (tid == '0') {
		guntype.options[0]=new Option('Handgun', 'h');
		guntype.options[1]=new Option('Shotgun', 's');
		guntype.options[2]=new Option('Rifle', 'r');
		guntype.options[3]=new Option('Multigun', 'm');
	} else {
		var index = 0;
		eval('var guntypelist = typeof(tid'+tid+') != \'undefined\' ? tid'+tid+' : \'____\';');
		if (guntypelist.charAt(0) == 'h') {
			guntype.options[index]=new Option('Handgun', 'h');;
			index = index + 1;
		}
		if (guntypelist.charAt(1) == 's') {
			guntype.options[index]=new Option('Shotgun', 's');
			index = index + 1;
		}
		if (guntypelist.charAt(2) == 'r') {
			guntype.options[index]=new Option('Rifle', 'r');
			index = index + 1;
		}
		if (guntypelist.charAt(3) == 'm') {
			guntype.options[index]=new Option('Multigun', 'm');
			index = index + 1;
		}
	}

	fixDiv();

	return true;
}

function Validate() {
	if (document.forms[0].action.value == 'yearchange')
		return true;

	if (document.forms[0].tid.selectedIndex == 0) {
		alert('Please select a competition.');
		document.forms[0].tid.focus();
		return false;
	}

	return true;
}

function changeY() {
	document.forms[0].action.value = 'yearchange';
	document.forms[0].submit();
}

function ValidatePl() {
	if (document.forms[0].action.value == 'skip')
		return true;
	var players = new Array();
	var length = 0;
	for(i = 1; i < 6; i++) {
		eval('pli = document.forms[0].plr'+i+';');
		if (pli.selectedIndex == 0)
			continue;
		if (players.in_array(pli.selectedIndex))
			pli.selectedIndex = 0;
		else
			length = players.push(pli.selectedIndex);
	}
	if (length < 2) {
		alert('Please select at least two competitors.');
		return false;
	}

	return true;
}

function Skip() {
	document.forms[0].action.value = 'skip';
	var pli;
	for(i = 1; i < 6; i++) {
		eval('pli = document.forms[0].plr'+i+';');
		pli.selectedIndex = 0;
	}
	document.forms[0].submit();
}