var xmlHttp

	
function showcontents(mcd,mcnt,cmnu){ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	}
	for (var i = 0; i < mcnt ; i++){
		mnuString = "lftmenu = document.getElementById('lm"+i+"')";
		eval(mnuString);
		lftmenu.src = 'imgs/b-1.gif';
	}
	mnuString = "lftmenu = document.getElementById('lm"+cmnu+"')";
	eval(mnuString);
	lftmenu.src = 'imgs/b-2.gif';
	if (mcd.length < 7){
		mnuString = "menublock = document.getElementById('"+mcd.substr(0,6)+"')";
		eval(mnuString);
		if (menublock.style.display == "none"){
			menublock.style.display = 'block';
		}else{
			menublock.style.display = 'none';
		}
		
	}

	document.getElementById("txtcontents").innerHTML="<center><table  style ='margin-top:150px;margin-bottom:150px;' border ='0'><tr><td align='center'><img src ='imgs/cloader.gif' alt ='Loading'/></td></tr><tr><td>Loading</td></tr></table></center>";
	
	var url="getcontents.php?"
	var param= "mnu="+mcd
	param = param//+"&sid="+Math.random()
	window.location.hash = param;
	url = url+param
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}// end of show contents
	
function stateChanged() { 

	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("txtcontents").innerHTML=xmlHttp.responseText 
		} 

}

function GetXmlHttpObject(){
	var xmlHttp=null;
	try	{
	// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e){
	//Internet Explorer
		try{
		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}