function getcontent(url,divName){
	var xmlhttp;
	xmlhttp=GetXmlHttpObject();	
	if (xmlhttp == null){
	  alert ("Your browser does not support XMLHTTP!");
	  return;
	}
	xmlhttp.onreadystatechange=function StateChanged(){		
		if (xmlhttp.readyState==4){
		  document.getElementById(divName).innerHTML="";
		  document.getElementById(divName).innerHTML=xmlhttp.responseText;
		  //document.getElementById("loading").style.display="none";
		}
	}
	//document.getElementById("loading").style.display="block";
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);	
}

function GetXmlHttpObject(){
	if (window.XMLHttpRequest){
	  // code for IE7+, Firefox, Chrome, Opera, Safari
	  return new XMLHttpRequest();
	}
	if (window.ActiveXObject){
	  // code for IE6, IE5
	  return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}

function ShowPageNumber(startpage,nbpage,totalpage,divname){
	//alert(startpage+" : "+nbpage+" : "+totalpage+" : "+divname);
	var cont="<ul id='pagenaid'>";
	var counter=0;
	if (startpage>1){
		cont+="<li><a href=\"javascript:ShowPageNumber("+(startpage-nbpage)+","+nbpage+","+totalpage+",'"+divname+"')\">Previous</a></li>";
		counter++;
	}
	if ((totalpage<=(startpage+nbpage))){
		for (var i=(startpage+1);i<=totalpage;i++){
			if (i==(startpage+1)){
				//;SetClassActive('pagenaid',".($i-1).");
				cont+="<li class='activepage'><a href=\"javascript:getcontent('getfieldtrip.php?start="+i+"','fieldtripid');SetClassActive('pagenaid',"+counter+");\">"+i+"</a></li>";
			}else{
				cont+="<li><a href=\"javascript:getcontent('getfieldtrip.php?start="+i+"','fieldtripid');SetClassActive('pagenaid',"+counter+");\">"+i+"</a></li>";
			}
			counter++;
		}
	}else{
		for (var i=(startpage+1);i<=(startpage+nbpage);i++){
			if (i==(startpage+1)){
				cont+="<li class='activepage'><a href=\"javascript:getcontent('getfieldtrip.php?start="+i+"','fieldtripid');SetClassActive('pagenaid',"+counter+");\">"+i+"</a></li>";
			}else{
				cont+="<li><a href=\"javascript:getcontent('getfieldtrip.php?start="+i+"','fieldtripid');SetClassActive('pagenaid',"+counter+");\">"+i+"</a></li>";
			}
			counter++;
		}
		cont+="<li><a href=\"javascript:ShowPageNumber("+(startpage+nbpage)+","+nbpage+","+totalpage+",'"+divname+"')\">Next</a></li>";
	}
	cont+="</ul>";
	getcontent('getfieldtrip.php?start='+(startpage+1),"fieldtripid")
	document.getElementById(divname).innerHTML=cont;
}

function ChnagePassword(id){
	document.getElementById(id).innerHTML="<input type='password' name='pass' id='passid' />";
	document.getElementById(id).innerHTML+="<input type='button' name='change' id='changeid' value=' Chnage ' onClick=\"getcontent('changepass.php?pass='+document.getElementById('passid').value,'"+id+"')\" />";
}

function SetClassActive(pagenaid,id){
	/*document.getElementById(id).className="activepage";*/
	var tabs = document.getElementById(pagenaid).getElementsByTagName('li');
	for(var i=0; i < tabs.length; i++)
	{
		if (i==id)
		{
			tabs[i].className = 'activepage';
		}
		else
		{
		  tabs[i].className = '';
		}
	}
}


function ValidatMessage(){
	
	var title=document.getElementById("titleid").value;
	var message=document.getElementById("messageid").value;
	var valid=true;
	if (title==""){
		valid=false;
	}
	
	if (message==""){	
		valid=false;
	}
	
	if (valid==false){
		document.getElementById("errorid").innerHTML="Please fill all fields below";
	}
	return valid;
}

function changecolor(col,id){
	document.getElementById(id).bgColor=col;
}