// JavaScript Document

var http_requesting;

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

   function alertContents() {
      if (http_requesting.readyState == 4) {
         if (http_requesting.status == 200) {
            //alert(http_request.responseText);
            result = http_requesting.responseText;
            document.getElementById('available').innerHTML = result;            
         } else {
          //  alert('There was a problem with the request.');
         }
      }
   }
   
   function checkUser(lets) {
	   var poststr = "want=" + lets;
      makePOSTRequest('aquires/userCheck.php', poststr);
   }
   
   
   function MM_validateForm() { //v4.0
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
      if (val) { nm=val.name; if ((val=val.value)!="") {
        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
          if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
        } else if (test!='R') { num = parseFloat(val);
          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
            min=test.substring(8,p); max=test.substring(p+1);
            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
    } if (errors) alert('The following error(s) occurred:\n'+errors);
    document.MM_returnValue = (errors == '');
} }