function numbersonly(myfield, e, dec)
{
var key;
var keychar;

if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
else
   return true;
keychar = String.fromCharCode(key);

// control keys
if ((key==null) || (key==0) || (key==8) || 
    (key==9) || (key==13) || (key==27) )
   return true;

// numbers
else if ((("0123456789").indexOf(keychar) > -1))
   return true;

// decimal point jump
else if (dec && (keychar == "."))
   {
   myfield.form1.elements[dec].focus();
   return false;
   }
else
   return false;
}

  function validateEmail(form1){      
       var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
       return emailPattern.test(form1); 
   }
   function chkform(form1)
   {
	    if(document.form1.fname.value=="")
		{
		alert("Please enter your First Name");
		document.form1.fname.focus();
		return false;
		}
		if(document.form1.lname.value=="")
		{
		alert("Please enter your Last Name");
		document.form1.lname.focus();
		return false;
		}
		if(document.form1.email.value=="")
		{
		alert("Please enter Email Address");
		document.form1.email.focus();
		return false;
		}
		
		if(!validateEmail(document.form1.email.value))
		{
		alert("Please enter correct Email Address");
		document.form1.email.focus();
		return false;
		}
		
		if(document.form1.phone.value=="")
		{
		alert("Please enter your Phone Number");
		document.form1.phone.focus();
		return false;
		}
		if(document.form1.zip.value=="")
		{
		alert("Please enter your Zip Code");
		document.form1.zip.focus();
		return false;
		}
		if(document.form1.amount.value=="")
		{
		alert("Please select your Amount Owed");
		document.form1.amount.focus();
		return false;
		}
		if(document.form1.tax.value=="")
		{
		alert("Please select your Tax Problem");
		document.form1.tax.focus();
		return false;
		}
		
		
		
		
    return true;
   }