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_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_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 isEmpty(str)
{
    for(var intLoop=0; intLoop<str.length; intLoop++)
      if(str.charAt(intLoop)!=" ")
        return false;
    return true;
}

function checkRequired ()
{
	var f= document.requestForm;
	var strError= "";
	
	if (isEmpty(f.name.value)) {
         strError +="\n-- Name";
	}
	if (isEmpty(f.email.value)) {
         strError +="\n-- Email";
	} else if (!validEmail(f.email.value)) {
		 strError +="\n-- Invalid Email Address";
	}
	if (isEmpty(f.phone.value)) {
         strError +="\n-- Phone Number";
	}
	if (isEmpty(f.bmonth.value)) {
         strError +="\n-- Begin Month";
	}
	if (isEmpty(f.bday.value)) {
         strError +="\n-- Begin Day";
	}
	if (isEmpty(f.byear.value)) {
         strError +="\n-- Begin Year";
	}
	if (isEmpty(f.emonth.value)) {
         strError +="\n-- End Month";
	}
	if (isEmpty(f.eday.value)) {
         strError +="\n-- End Day";
	}
	if (isEmpty(f.eyear.value)) {
         strError +="\n-- End Year";
	}
	
	//display error message
    if(strError !="") {
		alert("The following required data is missing or not valid:\n" + strError);
		return false;
    } else {
		return true;
	}
}

function validEmail(emailS) {
  if (emailS.indexOf("@") > 0 && emailS.indexOf(".") != -1 && emailS.lastIndexOf(".") < (emailS.length-2) && emailS.lastIndexOf(".")>0 && (emailS.lastIndexOf(".") - emailS.lastIndexOf("@") > 1) ) 
  {
    return true;
  } else {
    return false;
  }
}