window.onload = function () {
	setfooter();
}

function setfooter(){
var footerelmnt = document.getElementById('footer');
var totalheight = document.body.clientHeight;

footerelmnt.style.top = parseInt(totalheight-201)+"px";
}

function isNumber(strValue)
{
  var re = new RegExp('^[0-9\\-\\s]+$');
	  if (strValue.match(re)) {
	    return true;
	  } else {
	    return false
	  }
}	

function isEmail(strValue)
{
  var objRE = /^[\w-\.\']{1,}\@([\da-zA-Z-]{1,}\.){1,}[\da-zA-Z-]{2,}$/;

  return (strValue != '' && objRE.test(strValue));
}

function set_required(element){
	var f = document.forms['response'];
 	if(element == "fax"){
 		document.getElementById('faxfield').innerHTML = '*';
 		document.getElementById('telephonefield').innerHTML = '';
 		f.fax.checked = true;
 	}
 	else if(element == "telephone"){
 		document.getElementById('telephonefield').innerHTML = '*';
 		document.getElementById('faxfield').innerHTML = '';
 		f.fax.checked = true;
 	}
 	else{
 		document.getElementById('telephonefield').innerHTML = '';
 		document.getElementById('faxfield').innerHTML = '';
 		f.email.checked = true;
 	}
}