/* Call on this function to get a xmlHttp object, used for ajax data transfer / communication */
function getxmlHttp() {
	var xmlHttp=null;
	try {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	  } catch (e) {
	  // Internet Explorer
		try {
		 xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			try {
			  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {
			 alert("Your browser does not support AJAX!");
			 return false;
			}
		}
	  }
	  
	  
	  return xmlHttp;
}	

// ajax function to get submenu
function getSubMenu(whatSubMenu,reload){
	var params ="";
	params += "&subMenu="+whatSubMenu;
						
	var url = "/dynfunction/submenu.php";
	var xmlHttp = getxmlHttp();	
	xmlHttp.open("POST", url, true);
	
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
	
	xmlHttp.onreadystatechange = function() {
		if(xmlHttp.readyState == 4) {
			var response = xmlHttp.responseText;	
			var subMenu = document.getElementById('subMenu');
			subMenu.innerHTML = response;
			
			if(reload == 1){
				location.href = document.getElementById('firstSubPage').value;
			}
		}
		 	
	}
	xmlHttp.send(params);
}