function doSignUp()
{
			var ajaxRequest;  // The variable that makes Ajax possible!
			
		//validation
		var err_msg = "";
		if (document.getElementById("full_name").value=="")
			err_msg += "Your Full Name\n";
			
		if (document.getElementById("email").value=="")
			err_msg += "Your Email Address\n";
			
		if (err_msg!="")
		{
			alert("The following fields were left blank:\n\n"+err_msg);
			return false;
		}
		
		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;
				}
			}
		}
		
		// Create a function that will receive data sent from the server
		ajaxRequest.onreadystatechange = function()
		{
			if(ajaxRequest.readyState == 4)
			{
				document.getElementById("signup_action").innerHTML = "<span style=\"color: #FFF;font-weight: bold;\">Thank you for signing up.</span>";
				document.getElementById("full_name").value = "";
				document.getElementById("email").value = "";
				document.getElementById("dob_y").value = "";
				document.getElementById("dob_m").value = "";
				document.getElementById("dob_d").value  = "";
				document.getElementById("an_y").value = "";
				document.getElementById("an_m").value = "";
				document.getElementById("an_d").value  = "";
			}
		}
		
		var q = "?action=join";
		q += "&full_name="+escape(encodeURI(document.getElementById("full_name").value));
		q += "&email="+escape(encodeURI(document.getElementById("email").value));
		q += "&dob="+escape(encodeURI(document.getElementById("dob_y").value))+"-"+escape(encodeURI(document.getElementById("dob_m").value))+"-"+escape(encodeURI(document.getElementById("dob_d").value));
		q += "&an="+escape(encodeURI(document.getElementById("an_y").value))+"-"+escape(encodeURI(document.getElementById("an_m").value))+"-"+escape(encodeURI(document.getElementById("an_d").value));
		
		
		ajaxRequest.open("GET", "/global/ajax/sign_up.php" + q, true);
		ajaxRequest.send(null);
		}