function hide_element(element,prfix)
{
	
var elem1,elem2,str;
	elem1='trdiv'+prfix+element;
	//alert(element);
	elem2='sp_'+prfix+element;
	document.getElementById(elem1).style.display='none';
	document.getElementById(elem1).style.visibility='hidden';
	str="<img src='/images/icon/arrow-down.gif' onclick=show_element('"+element+"','"+prfix+"')>";
	document.getElementById(elem2).innerHTML=str;
}
function show_element(element,prfix)
{
	//alert(prfix);
	var elem1,elem2,str,style,elem3,cont;
	elem1='trdiv'+prfix+element;

	elem2='sp_'+prfix+element;
	
	style="table-row";
if (navigator.appName == "Microsoft Internet Explorer") {
style="block";
}
	document.getElementById(elem1).style.display=style;
	document.getElementById(elem1).style.visibility='visible';
	str="<img src='/images/icon/arrow-up.gif' onclick=hide_element('"+element+"','"+prfix+"')>";
	document.getElementById(elem2).innerHTML=str;
	elem3='cnt_'+prfix+element;
	cont=document.getElementById(elem3).innerHTML;

	if(cont=="")
	{
		document.getElementById(elem3).innerHTML="<img src='/images/icon/blue-loading.gif' align='middle'>Please Wait....."
		get_aj_type(element,prfix);
	}
}
function get_aj_type(elem,prfx)
{
	

	htmlRequest =ajaxall();
	//alert(htmlRequest);
	if (htmlRequest==null){ // If it cannot create a new Xmlhttp object.
		alert ("Browser does not support HTTP Request");
		return;
	} 
	var elem3;
	elem3='cnt_'+prfx+elem;
	htmlRequest.onreadystatechange = function(){
		if(htmlRequest.readyState == 4){
			document.getElementById(elem3).innerHTML = htmlRequest.responseText;
			// alert(htmlRequest.responseText);
			// hide('mask_window');
		}
	}
	htmlRequest.open('POST', '/include/med_ajaxx_call.php');//get filed from report
	htmlRequest.setRequestHeader("Method", "POST /include/med_ajaxx_call.php HTTP/1.1");
	htmlRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	htmlRequest.setRequestHeader("Connection", "close");
	var myurl;
	myurl='func=get_list_course_grp&ajaxcall=true&arg='+elem+'&contact=test';//+document.shoutbox.shouter_contact.value;
	//alert(myurl);
	htmlRequest.send(myurl); 
}