function despace(testVal)
{ return testVal.replace(/ +/g,''); }

function doVal(thisform)
{
    var re = new RegExp;
    re.compile("[.\r\n]*?[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+[.\r\n]*?");
    
    // Check for URLs in major fields 
    if ( re.test(thisform.txtOther.value) || re.test(thisform.txtAddl.value) )
    { alert("You cannot enter URLs in the products and comments."); return false; }
    
    if (!despace(thisform.txtName.value)) { alert("You must enter a name."); return false; }
    if (!despace(thisform.txtPhone.value) && !despace(thisform.txtEmail.value) ) { alert("Please enter a phone number or an e-mail address."); return false; }
    if (despace(thisform.txtEmail.value)) { if ( !thisform.txtEmail.value.match(/\w+@\w+.\w{2,}/) ) { alert ("You must enter a valid e-mail address."); return false; } }
    if (!despace(thisform.txtZip.value)) { alert("You must enter a zip code."); return false; }
 }

function radioIndex(rb)
{ checkedIndex = -1;
 for (i=0;i<rb.length;i++)
 { if (rb[i].checked) { checkedIndex = i; } }
 return checkedIndex; 
}