//-----------------------------------------------------------------------------
//sets target of external links to _blank
//-----------------------------------------------------------------------------
function externalLinks() {
  var anchors = document.getElementsByTagName("a");
  for (var i=0; i<anchors.length; i++) {
    var anchor = anchors[i];
    if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
      anchor.target = "_blank";			
    }
}

//----------------------
//check the contact form
//----------------------
function validateForm()
{
 var x = document.forms[0].elements;
 var hasErrors = false;
 var already_set_focus = false;
 var error = "The following fields were not entered or are invalid...\n";

 for (var i=0;i<x.length;i++) {
  if (x[i].className.indexOf('required_field') != -1 && !x[i].value) {
		hasErrors = true;
		//append field to error message
    error += "\""+x[i].id+"\"\n";
		//set focus unless its already been done
    if(!already_set_focus) { 
 		  x[i].focus();
			already_set_focus = true;
		}
		//add onchange trigger
		x[i].onchange = removeError;
		//change the form field to have a red border
		x[i].className += ' error';
	}	
 }
 
 //if errors, alert
 if(hasErrors) alert(error); 
 
 return !hasErrors;
}

function removeError() {
  this.className = this.className.substring(0,this.className.lastIndexOf(' '));
	this.onchange = null;
}

//-----------------------------------------------------------------------------
// Function to allow multiple onload functions to be called
//-----------------------------------------------------------------------------
window.onload = function ()
{
  if (!document.getElementsByTagName) return;
  externalLinks();

}