var Unit = new Object();
Unit.path = "/unit/";

Unit.load = function(filename){
	var path = this.path + filename;
	document.write('<script language="javascript" type="text/javascript" src="'+path+'"></script>');
}

Unit.loadGroup = function(group){
	var units = group.split(',');
	for(var i=0; i<units.length; i++){
		this.load(units[i]+'.php');
	}
}

Unit.show = function(content_id){
	var content = document.getElementById(content_id);
	if(content.style.display == "none"){
		content.style.display = "block";
	}else{
		content.style.display = "none";
	}
}