function staff_login(frm){
	var list=new Array() ;
	var u=document.getElementById('username').value;
	var p=document.getElementById('password').value;
	var l=document.getElementById('url').value;
	var url = 'system_inc/ajax.php';
	post_request(url,'type=log_me_on&u='+u+'&p='+p,function(){
				if (http_request.readyState == 4) {
					var data=http_request.responseText.split("^^");
					if(data[0]=='false') {
						alert(data[1]+"\r\nPlease try again");
						document.getElementById('slogin').innerHTML=data[2];
					} else {
						window.location=l;
					}
				}
	});
	return false;
}

function reminder_start(stat) {
	var u = document.getElementById('username').value;
	var url = 'system_inc/ajax.php';
	post_request(url,'type=reminder_start&u='+u+'&p='+stat,function(){
				if (http_request.readyState == 4) {
					var data=http_request.responseText.split("^^");
					if(data[0]=='false') {
						alert(data[1]+"\r\nPlease try again");
					} else {
						document.getElementById('srem').innerHTML=data[0];
					}
				}
	});
	return false;
}

function staff_profile() {
	if(document.getElementById('password').value != '') {
		var p=document.getElementById('password').value;
		var cp=document.getElementById('confirm_password').value;
		if(p != cp) {
			alert("Passwords do not match\r\nPlease try again");
			return false;
		}
	}
	var list=new Array() ;
	var total=0;
	var frm = document.getElementById('profile');
	for (i=0; i<frm.elements.length; i++){
		if(frm.elements[i].type=="checkbox") {
			if(frm.elements[i].checked==true) {
				list[i] = frm.elements[i].name+"="+escape(frm.elements[i].value);
			} 
		} else {
			list[i] = frm.elements[i].name+"="+escape(frm.elements[i].value);
		}
	}
	var result1=list.join() //creates the String "Apple,Oranges"
	var result2=list.join("&") //creates the String "Apple*Oranges"
	var url = 'system_inc/ajax.php';
	post_request(url,'type=staff_profile&'+result2,function(){
				if (http_request.readyState == 4) {
					var data=http_request.responseText.split("^^");
					if(data[0]=='false') {
						alert(data[1]);
					} else {
						document.getElementById('sprofile').innerHTML=data[0];
					}
				}
	});
	return false;
}

function stringFilter(input) {
	var clean = input.replace(/[^a-zA-Z0-9]+/g,' ');
	clean=clean.replace('  ',' ');
	return clean;
}

function check_form() {
	var fields=Array('First_name','Last_name','Phone','I_Accept_the_Terms_and_Conditions_yes');
	for(i=0;i<=fields.length-1;i++) {
		if(document.getElementById(fields[i]).value=='') {
			alert("Please enter a value for the following field: \r\n"+stringFilter(fields[i]));
			document.getElementById(fields[i]).focus();
			return false;
		}
		if( document.getElementById(fields[i]).type=='radio' && document.getElementById(fields[i]).checked==false) {
			alert("Please enter a value for the following field: \r\n"+stringFilter(fields[i]));
			document.getElementById(fields[i]).focus();
			return false;
		}
	}
}

function post_request(url, parameters, returnfunction) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      
      http_request.onreadystatechange = returnfunction;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
}