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) { //v3.0
  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); 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 MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function calcLbsSq(){
var depth=document.frmCalc.depth.options(document.frmCalc.depth.selectedIndex).value;
//alert (depth);
switch(depth){
case "1":
document.frmCalc.LbsSq.value=2.33;
break
case "1.5":
document.frmCalc.LbsSq.value=3.50;
break
case "2":
document.frmCalc.LbsSq.value=4.66;
break
case "3":
document.frmCalc.LbsSq.value=7;
break
case "4":
document.frmCalc.LbsSq.value=9.33;
break
case "5":
document.frmCalc.LbsSq.value=11.67;
break
case "6":
document.frmCalc.LbsSq.value=14;
break
default :
;
}
}
function CalcTons(){
document.frmCalc.Lbs.value=(document.frmCalc.Length.value * document.frmCalc.Width.value * document.frmCalc.LbsSq.value)
document.frmCalc.Tons.value=(document.frmCalc.Length.value * document.frmCalc.Width.value * document.frmCalc.LbsSq.value)/2000
}
function Form1_onsubmit(theForm) {
   if (theForm.contact.value == "") {
      alert("Please enter a contact.");
      return (false);   // This cancels the submission
   }
         if (theForm.city.value == "") {
      alert("Please enter your city.");
      return (false);   // This cancels the submission
   }
         if (theForm.state.value == "Select a State") {
      alert("Please select your state.");
      return (false);   // This cancels the submission
   }
         if (theForm.zip.value == "") {
      alert("Please enter your zip code.");
      return (false);   // This cancels the submission
   }
      if (theForm.phone.value == "") {
      alert("Please enter your phone number.");
      return (false);   // This cancels the submission
   }
          else if (theForm.email.value.indexOf("@" && ".") == -1){ 
       alert("Please check that your email address is valid."); 
       return (false);
   } 
         if (theForm.area.value == "") {
      alert("Please enter the area you would like to cover.");
      return (false);   // This cancels the submission
   }
 

  
   else 
      ; // Information automatically sent to server
   return (true);
}