var DOM = (document.getElementById);
var loaded = false; 

if (DOM) {
//	document.write("<link rel='stylesheet' type='text/css' href='css/jsStyle.css' />")
};

function getObj(id) {
	if (typeof id != "string") return id;  
	else return document.getElementById(id);
}

function getElementsByTagAndClassName(className, tagName) { 
	var filteredArray = new Array(); 
	var nodeArray = document.getElementsByTagName(tagName);
	for (var obj, i = 0; (obj = nodeArray[i]); i++) {
		if (obj.className == className) {
			filteredArray[filteredArray.length] = obj;
		}
	}
	return filteredArray;
}

function closeCompareBox() {
	nodeArray = getElementsByTagAndClassName('compare','div');
	for (var obj, i = 0; (obj = nodeArray[i]); i++) {
		obj.style.display='none';
	}
	return false;
}

function openCompareBox(boxId) {
	closeCompareBox();
	getObj(boxId).style.display='block';
	return false;
}

function init() {
	loaded = true;
}