$(document).ready(function() {
				
	var header = $("#navigation div");
	var offerContent = $("#box");
	
	header.hover(function(){					
		var pageNum = this.id;
		var targetUrl = "offeringContents.php?page=" + pageNum;
		offerContent.load(targetUrl);
	});
				
	var pageNum = 'nav_1';
	var targetUrl = "offeringContents.php?page=" + pageNum;
	offerContent.load(targetUrl);					
							
});