/*
* Simple National Flags (Standalone)
* Version 1.0.0 (06/04/2009)
* @requires jQuery or any other library isn't needed
*
* Copyright (c) 2009 Stevan Majstorovic for majlab.com
* http://tribune.majlab.com
*/

addLoadEvent( function() {
	
	aFlagElements = getElementsByClass("flag",document);
	for (var i = 0; i < aFlagElements.length; i++) {
		aFlagClasses = aFlagElements[i].className.split(" ");
		for (var j = 0; j < aFlagClasses.length; j++) {
			aFlagId = aFlagClasses[j].split("_");
			if (aFlagId.length==2 && aFlagId[0]=="flag" && aFlagId[1].length==2) {
				x = 16 * (aFlagId[1].charCodeAt(0)-96);
				y = 11 * (aFlagId[1].charCodeAt(1)-96);
				aFlagElements[i].style.backgroundPosition = "-" + x + "px -" + y + "px";
			}
		}
	}
});

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}