function checkFields(id)
{
var email = document.form1.email_address.value;
AtPos = email.indexOf("@");
StopPos = email.lastIndexOf(".");
var str = '';
var elem = document.getElementById('form1').elements;
for(var i = 0; i < elem.length; i++)
	{
	if (elem[i].value =='') {
	alert(elem[i].name +" cannot be blank." );
	elem[i].style.backgroundColor='pink';
		return false;
	}
	if (document.form1.value =='') {
	alert(elem[i].name +" cannot be blank." );
	elem[i].style.backgroundColor='pink';
	//document.form1.elem[i].focus;
	return false;
		}
		
	 }
	 if (AtPos == -1 || StopPos == -1) {
alert( "Not a valid email address");
return false;
}

}


function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57)){
		 alert('Must be a number');
            return false;
		 }else{

         return true;
		 }
      }
	  
	  
	  function myBG(Id){
		 		// var all = document.all ¦¦ document.getElementsByTagName('*');
		  var elements = Array('bne','per','syd','mel');
		  for (i=0;i<elements.length;i++) {
			  document.getElementById(elements[i]).style.backgroundColor = '#ffffff';
			    }
		// alert( document.getElementById(Id).style.backgroundColor);
				 	 //   document.all[Id].style.backgroundColor = '#eeeeee';
	document.getElementById(Id).style.backgroundColor = '#eeeeee';
		
		  
	  }
	  
	  
	    
function changeC(id)
{
var color = "#999999";
// Change "" to the Object you want to style E.G "MyBox"
document.getElementById(id).style.backgroundColor = color;
}