  <!--  Hide script from old browsers
  //document.calc.sqmts.factor=0.09293680297398;  //sqmts
  // CHECK STRING - NUMERIC DIGITS AND DECIMAL POINTS ALLOWED
function showCalculator()
	{
		var url = "area_calculator.php";
		window.open(url,null,"left=0,top=4, height=420,width=490,status=yes,toolbar=no,scrollbars=yes,resizable=yes,menubar=no,location=no");
	}
function showEMICalculator(){
		var url = "emicalculator.php";
		window.open(url,null,"left=0,top=4, height=420,width=490,status=yes,toolbar=no,scrollbars=yes,resizable=yes,menubar=no,location=no");
	}	
  function toFloat(checkString)
  {
     var newString = "";     // REVISED/CORRECTED STRING
     var count = 0;       // COUNTER FOR LOOPING THROUGH STRING
               		// LOOP THROUGH STRING
    for (i = 0; i < checkString.length; i++)
    {
      ch = checkString.substring(i, i+1);  // CHECK EACH CHARACTER
      if ((ch >= "0" && ch <= "9") || (ch == "."))
      {
        newString += ch;
      }
    }
    if (checkString != newString)
    {
    // VERIFY WITH USER THAT IT IS OK TO REMOVE INVALID CHARACTERS
  if (confirm("The value you have entered\ncontains invalid characters,\nis it okay to remove them?"))
   {         // RETURN REVISED STRING
      }
      else
      {                    // RETURN ORIGINAL STRING
      return checkString;
      }
    }
    return newString;
  }
  function noedit(form1)
  {
    if(form1.sqft.value!="")
  {
    form1.button1.focus()
  }
  else
  {
  form1.reset1.focus()
  }
  }
  function clearForm1()
  {
    document.form1.reset();
  }
  function calculate()
  {
    var count = 20;
    var factor = new Array();
    factor[1]=1;       //sq.ft
    factor[2]=0.0930000000000000000;//sq.mts
    factor[3]=0.1111111111111000000;//sq.yards
    factor[4]=0.0000229566300000000;//acres
    factor[5]=0.0000092904166000000;//hectares
    factor[6]= 0.00041666667000000;//ground
    factor[7]= 0.00229600000000000;//cent
    var element =  new Array();
    element[1]= document.forms["form1"].elements["sqft"].value;
    element[2]= document.forms["form1"].elements["sqmt"].value;
    element[3]= document.forms["form1"].elements["sqyd"].value;
    element[4]= document.forms["form1"].elements["acre"].value;
    element[5]= document.forms["form1"].elements["hectare"].value;
    element[6]= document.forms["form1"].elements["ground"].value;
    element[7]= document.forms["form1"].elements["cent"].value;
    var firstvalue =0, position =0, nullcount=0;
    for (var i=1; i <= count; i++)
    {
      if(element[i] != null && element[i].length!=0)
      {
        if(i==1 && element[2]!="")
        var parsecheck=""+parseFloat(element[i]);
        if(parseFloat(element[i])==0 || parsecheck=="NaN")
        {
          window.alert("Please Enter a Non-Zero Number");
        }
        firstvalue=element[i]/factor[i];
        position= i;
        value=element[i];
        break;
      }
      else
      {
      nullcount=nullcount+1
      }
      if (nullcount==count)
      {
      window.alert("Please enter a value.")
      return
      }
    }
    if (firstvalue==0)
    {
      clearForm1(form1);
    }
      document.forms["form1"].elements["sqft"].value=firstvalue*factor[1];
      document.forms["form1"].elements["sqmt"].value=firstvalue*factor[2];
      document.forms["form1"].elements["sqyd"].value=firstvalue*factor[3];
      document.forms["form1"].elements["acre"].value=firstvalue*factor[4];
      document.forms["form1"].elements["hectare"].value=firstvalue*factor[5];
      document.forms["form1"].elements["ground"].value=firstvalue*factor[6];
      document.forms["form1"].elements["cent"].value=firstvalue*factor[7];
  if(document.forms["form1"].elements["sqft"].value<0.00000001)
  {
  document.forms["form1"].elements["sqft"].value="0";
  }
  if(document.forms["form1"].elements["sqmt"].value<0.00000001)
  {
  document.forms["form1"].elements["sqmt"].value="0";
  }
  if(document.forms["form1"].elements["sqyd"].value<0.00000001)
  {
  document.forms["form1"].elements["sqyd"].value="0";
  }
  if(document.forms["form1"].elements["acre"].value<0.00000001)
  {
  document.forms["form1"].elements["acre"].value="0";
  }
  if(document.forms["form1"].elements["hectare"].value<0.00000001)
  {
  document.forms["form1"].elements["hectare"].value="0";
  }
  if(document.forms["form1"].elements["ground"].value<0.00000001)
  {
  document.forms["form1"].elements["ground"].value="0";
  }
  if(document.forms["form1"].elements["sqft"].value>9999999999)
  {
  document.forms["form1"].elements["sqft"].value="-";
  }
  if(document.forms["form1"].elements["sqmt"].value>9999999999)
  {

  document.forms["form1"].elements["sqmt"].value="-";
  }
  if(document.forms["form1"].elements["sqyd"].value>9999999999)
  {
  document.forms["form1"].elements["sqyd"].value="-";
  }
  if(document.forms["form1"].elements["acre"].value>9999999999)
  {
  document.forms["form1"].elements["acre"].value="-";
  }
  if(document.forms["form1"].elements["hectare"].value>9999999999)
  {
  document.forms["form1"].elements["hectare"].value="-";
  }
  if(document.forms["form1"].elements["ground"].value>9999999999)
  {
  document.forms["form1"].elements["ground"].value="-";
  }
  if(document.forms["form1"].elements["cent"].value>9999999999)
  {
  document.forms["form1"].elements["cent"].value="-";
  }  
  }
  // end hiding from old browsers -->
  function setfocus(){document.form1.sqft.focus();}
// JavaScript Document