var auctions = new function() {
	this.ajax = new Ajax();
	
	this.bid = function(item_id, amt) {
		this.ajax.setMimetype="text/xml";
		this.ajax.responseFormat="xml";
		this.ajax.doGet("/includes/auctions/src/index.php?xaction=bid&item_id="+item_id+"&amt="+escape(amt), this.finishBid, "xml"); 
	};
	
	this.finishBid = function(ajax_xml) {
		var xmlDom=ajax_xml;
		var root=xmlDom.documentElement;
		
		for(var i = 0; i < root.childNodes.length; i++) {
			switch(root.childNodes[i].nodeName) {
				case "message": alert(root.childNodes[i].firstChild.nodeValue); break;
				case "current_bid": 
				case "num_bids": 
				case "time_remaining": 
					document.getElementById(root.childNodes[i].nodeName).firstChild.nodeValue=root.childNodes[i].firstChild.nodeValue; break;
			}
		}
	};
}