window.onload = init;		

	function init()
	{
		document.getElementById("firstname").onkeydown=disableEnterKey;
		document.getElementById("surname").onkeydown=disableEnterKey;
		document.getElementById("addrline1").onkeydown=disableEnterKey;
		document.getElementById("addrline2").onkeydown=disableEnterKey;
		document.getElementById("postcode").onkeydown=disableEnterKey;
		document.getElementById("email1").onkeydown=disableEnterKey;
		document.getElementById("phone").onkeydown=disableEnterKey;
		
	}

	function disableEnterKey()
	{
		if(event.keyCode == 13) 
		{
			event.keyCode=9; //return the tab key
			event.cancelBubble = true;
		}
	}


function isNumeric(elem, helperMsg){
	var numericExpression = /^[.0-9]+$/;
	if(elem.value.match(numericExpression)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}


function CheckForm()
{

  

   var cemail;	
   cemail = document.contpage.email1;


   if(!isEmail(trim(cemail.value)))
   {
      alert('Email address is not valid');
      cemail.focus();
      return false;
   }
   
   else
   {
      cemail.value   = trim(cemail.value);
      return true;
   }

 }

function trim(str)
{
   return str.replace(/^\s+|\s+$/g,'');
}

function isEmail(str) {
   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
 
}