function unique(a) {
	tmp = new Array(0);
	for(i=0;i<a.length;i++){
		if(!contains(tmp, a[i])){
			tmp.length+=1;
			tmp[tmp.length-1]=a[i];
		}
	}
	return tmp;
}

function contains(a, e) {
	for(j=0;j<a.length;j++)if(a[j]==e)return true;
	return false;
}

String.prototype.toCapitalCase = function() {
	
		var re = /\s/;
		var words = this.split(re);
		re = /(\S)(\S+)/;
		for (i = words.length - 1; i >= 0; i--) {
		re.exec(words[i]);
		words[i] = RegExp.$1.toUpperCase()
		+ RegExp.$2.toLowerCase();
	}
	return words.join(' ');
}