// JavaScript Document

function trim(str) {

  return str.replace(/^\s*|\s*$/g,"");

}

function getVal(id) {

  return document.getElementById(id).value;

}

function checkForm() {
   
  var ids = Array( 'Name','Address','Suburb','State','Postcode','Phone','Email','Hear','Questions' );
  var msgs = Array( "- Your name\n","- Your address\n","- Your suburb\n","- Your state\n","- Your postcode\n","- Your Phone Number\n","- Your e-mail address\n","- How you heard about us\n","- Your questions\n");
  
  var alertStr = "Before you continue, we need the following information...\n\n";
  var error = 0;
  var E1 = document.getElementById("Email");
  var E2 =document.getElementById("Email2");
  var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
  
  for (x = 0; x < ids.length; x++) {
      var id = ids[x];
      var val = getVal(id);
      if (trim(val) == "") {
          alertStr += msgs[x];
          error = 1;
      }   
  }

   //check if the email address entered is valid and consistant
   if(E1.value != "") {
     if (!filter.test(E1.value)) {
        alertStr+="- The e-mail address you have entered is invalid.\n";
        E1.value = '';
        E1.focus();
	error=1;
     } else if(E1.value != E2.value) {
          alertStr+="- You have entered your e-mail address inconsistently, please try again.\n";
	  E1.focus();
	  error=1;
     }
   } 
  
  if (error == 1) {
      alert(alertStr);
      return false;
  } 

}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}