var loadstatustext="<img src='loading.gif' />"
var req
function showInstitute(str)
{
	
document.getElementById("imgload").innerHTML=loadstatustext
url=str;
req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	     } catch(e) {
          		req = false;
        	}
		}
    }
	

	if(req) {
		req.onreadystatechange = stateChanged;
		req.open("GET",url, true);
		req.send("");
	}
}


function stateChanged() 
{ 
	if (req.readyState==4)
	 { 
		 
		 			
						// only if "OK"
						if (req.status == 200) 
						{
							results=req.responseText;							
							resultsstr=results.split(",");		
							
						//remove earlier point of interest 			
						removeAlluni('groupinst');
						//add the checkboxes for point of interest
						for (var i=0; i < resultsstr.length-1;++i)
						{							
						adduna('groupinst',resultsstr[i+1],resultsstr[i]);
						i=i+1;		
						}		
					 }
				  
		 //document.frminvprofile.selsector.value=xmlHttp.responseText;
		 document.getElementById("imgload").innerHTML=""
	 }  
}



function removeAlluni(file)
{
	var chkdivc = document.getElementById(file);	
	chkdivc.innerHTML=" ";		
}
function adduna(selectbox,value,text)
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;
	sobj=document.getElementById(selectbox)
	sobj.options.add(optn);
}












/* var req;
function selectsector(s_id)
{
url="selectsector.php?id="+s_id;
alert(url);
req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	     } catch(e) {
          		req = false;
        	}
		}
    }

	if(req) {
		req.onreadystatechange = processReqChange;
		req.open("GET",url, true);
		req.send("");
	}
}

function processReqChange() 
{
    // only if req shows "loaded"
    if (req.readyState == 4) 
	{
        // only if "OK"
        if (req.status == 200) 
		{
			results=req.responseText;
			alert(results);			
			resultsstr=results.split(",");			
		//remove earlier point of interest 			
		removeAlluni('selsector');
		//add the checkboxes for point of interest
		for (var i=0; i < results.length-1;++i)
		{						
		adduna('selsector',resultsstr[i+1],resultsstr[i]);
		i=i+1;		
		}		
	 }
   }
}

function removeAlluni(file)
{
	var chkdivc = document.getElementById(file);	
	chkdivc.innerHTML=" ";		
}
function adduna(selectbox,value,text)
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;
	sobj=document.getElementById(selectbox)
	sobj.options.add(optn);
} */