<!--
function MM_swapImgRestore() { //v3.0
  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() { //v3.0
  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) { //v4.01
  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() { //v3.0
  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 validate(myForm) {
	var errs = '';
	var first = '';
	if (myForm.yourname.value.length < 1) {
		errs += '   your name \n';
	}
	if (myForm.youremail.value.length < 1) {
		errs += '   your email address \n';
	}
    var emailPat = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    var matchArray = myForm.youremail.value.match(emailPat);
    if (myForm.youremail.value.length > 1) {
	    if (matchArray == null) {
	        errs += '   your email (must be a valid email address) \n';
        }
    }	
	if (myForm.friendsname.value.length < 1) {
		errs += '   friend`s name \n';
	}
	if (myForm.friendsemail.value.length < 1) {
		errs += '   friend`s email address \n';
	}
    var emailPat = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    var matchArray = myForm.friendsemail.value.match(emailPat);
    if (myForm.friendsemail.value.length > 1) {
	    if (matchArray == null) {
	        errs += '   friend`s email (must be a valid email address) \n';
        }
    }	
	if (errs.length > 3) {
		errs = 'You are missing some required fields.\n\nPlease provide: \n' + errs; 
		alert(errs); 
		return false;
	} else {
		return true;
	}
}