function lwc(field) {
 var tempVal1 = document.forms[0][field].value;
 document.forms[0][field].value = tempVal1.toLowerCase();
}

function upc(field) {
 var tempVal2 = document.forms[0][field].value;
 document.forms[0][field].value = tempVal2.toUpperCase();
}

function ucfirst(field) {
 var inputData = document.forms[0][field].value;
 var firstLetter = inputData.substr(0,1); // gets the first letter;
 var restOfString = inputData.substr(1) // gets the rest of the string
 var lcrestOfString = restOfString.toLowerCase();
 var ucfirstLetter = firstLetter.toUpperCase();
 document.forms[0][field].value = ucfirstLetter + lcrestOfString;;
}