function MM_swapImgRestore() {
  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() {
  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) {
  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() {
  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];}
}
function contact_input_bg(input,action) { // 0 = blur 1 = focus
	var name = input.name;
	var parent = document.getElementById('fancy_input_div_'+name);	
	if(action==1)
		parent.style.backgroundImage = "url('images/input_hover.png')";
	else
		parent.style.backgroundImage = "url('images/input.jpg')";
}

function echeck(str) { // function performs basic validation of an email address
	var email_regex = /^[-a-z0-9~!$%^&*_=+}{\'?]+(\.[-a-z0-9~!$%^&*_=+}{\'?]+)*@([a-z0-9_][-a-z0-9_]*(\.[-a-z0-9_]+)*\.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|mobi|[a-z][a-z])|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(:[0-9]{1,5})?$/i;
    if(email_regex.test(str)){         
		return true   
    }
	return false;
}
function validate_form(form) {
	var errors = new Array();
	if( (form.email.value==null) || (form.email.value=="") ) {
		errors[3] = 'Please enter your email address';
		form.email.focus();
	}
	else if(echeck(form.email.value) == false){
		errors[4] = 'Please enter a valid email address';
		form.email.focus();
	}
	if(form.phone.value=='') {
		errors[2] = 'Please enter your phone number';
		form.phone.focus();
	}
	if(form.name.value=='') {
		errors[1] = 'Please enter your name';
		form.name.focus();
	}
	var string = '';
	if(errors.length > 0) {
		for(i in errors) {
			if(errors[i].length > 0)
				string += errors[i] + '\n';
		}
		alert(string);
		return false;
	} else {
		return true;
	}
	return false;
}