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 popWin(URL){

	sWin = window.open(URL,'InvWin','width=540,height=550,toolbar=0,directories=0,menubar=0,status=0,resizable=0,location=0,scrollbars=0,copyhistory=0');
}

function checkForm(){
	if (document.myForm.firstname){
			if (document.myForm.firstname.value == ""){
			 alert("Please enter your first name.")
			 document.myForm.firstname.focus();
			 return false;
			}
		}
	if (document.myForm.lastname){
			if (document.myForm.lastname.value == ""){
			 alert("Please enter your last name.")
			 document.myForm.lastname.focus();
			 return false;
			}
		}
	if (document.myForm.email){
				var str=document.myForm.email.value
				var filter=/^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
				if (filter.test(str)!=true){
				 alert("Please enter a valid email address.")
				 document.myForm.email.focus();
				document.myForm.email.select();	
				 return false;
				}
		}
	if (document.myForm.PHONENumber){
		if (document.myForm.PHONENumber.value == ""){
	        alert("Please enter a valid Phone Number in the format ###-###-####.");
	        document.myForm.PHONENumber.focus();
	        return false;
		}
		else {
			var pattern1 = /\d{3}\-\d{3}\-\d{4}/; 
		    if(!pattern1.test(document.myForm.PHONENumber.value)) {
		        alert("Please enter a valid Phone Number in the format ###-###-####.");
		        document.myForm.PHONENumber.focus();
				document.myForm.PHONENumber.select();	
		        return false;
		      }
			}
	}
	
}
MM_preloadImages('images/nav/01_on.gif','images/nav/02_on.gif','images/nav/03_on.gif','images/nav/04_on.gif','images/nav/05_on.gif','images/nav/06_on.gif','images/nav/07_on.gif','images/nav/08_on.gif','images/nav/09_on.gif')