function validatebooking(){

var msg;
var msgflag;

msgflag = "false";
var pswdflag = "false";

 msg="The following fields require values:\r";

 if(document.forms[0].realname.value == ""){
	msg+="\rContact Name";
	msgflag="true";
	}
if(document.forms[0].phone.value  == ""){
	msg+="\rContact Phone Number";
    	msgflag="true";
	}
if(document.forms[0].email.value  == ""){
	msg+="\rYour Email Address";
    	msgflag="true";
	}
if(document.forms[0].email.value  != ""){
     var estr = new String(document.forms[0].email.value);
     var atindex = estr.indexOf("@");
     if(atindex ==-1){
         alert("You must enter a valid Email Address!")
         document.forms[0].email.focus();
          return;
         }
	}
 if(document.forms[0].captcha.value == ""){
	msg+="\rSecurity Code";
	msgflag="true";
        document.forms[0].captcha.focus();
	}



 if(document.forms[0].captcha.value != "86903"){
	alert("The Security Code is invalid. Please check again");
	msgflag="true";
	}
	

 if(msgflag == "true"){
	msg+="\r\rPress OK button below to return the form";
     	alert(msg);
}
	if(msgflag == "false") {
		document.forms[0].submit()
	}
}