Trouble capitalizing first word in input with javascript/jquery

Question

I have looked through a lot of the other threads on here with this question. I am having issues capitalizing the first letter of an input.

http://jsfiddle.net/sA9c8/2/

Answer 1

Are you trying to do this

function crmForm_lastname_onblur(sourceField, sourceRowId) {
    var val = sourceField.value;

    if (val.charAt(0).toUpperCase() != val.charAt(0)) 
         sourceField.value = val.charAt(0).toUpperCase() + val.slice(1)
}

FIDDLE