function startAjax()
{
	var ajaxRequest = null;  // The variable that makes Ajax possible!
		
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	
	return ajaxRequest;
}

/*ajax response*/
/*update page content*/
function processData(data)
{
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById(data);
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
}


function refreshCam(cam)
{
	ajaxRequest = startAjax();	
		
	var queryString = "?sid=" + Math.random() + "&cam=" + cam;
	
	
	ajaxRequest.open("GET", "/freedomfest/refreshcheck.php" + queryString, true);
	ajaxRequest.send(null);
	
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			
			//if image was availible according to php script
			var therespoonsedata = ajaxRequest.responseText.split("|");
			if(therespoonsedata[0] == '1'){
			
				document.campic.src=therespoonsedata[1];
			
			}	
			
			//loop the process
			startRefresh(cam);
			
		}
	}
	
	
	
}

function startRefresh(cam)
{
//**seconds**/
refreshFreq=2; 
setTimeout("refreshCam('"+cam+"')", refreshFreq*1000);
}