function focusNext(elemName, evt) {
	var element = document.getElementById(elemName);
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode :
        ((evt.which) ? evt.which : evt.keyCode);
    if (charCode == 13 || charCode == 3) {
      //  element.focus();
        return false;
    }
    return true;
}


function submitViaEnter(evt) {
    evt = (evt) ? evt : event;
    var target = (evt.target) ? evt.target : evt.srcElement;    
    var form = target.form;
    var charCode = (evt.charCode) ? evt.charCode :
        ((evt.which) ? evt.which : evt.keyCode);
    if (charCode == 13 || charCode == 3) {
		form.submit();
        //if (validateForm(form)) {            
            return false;
        //}
    }
    return true;
}

function validateUserInfo()
{
	var tbUser = document.getElementById("txtUserName");
	var tbPwd = document.getElementById("txtPwd");
	
	tbUser.value = tbUser.value.replace(/^\s*|\s*$/g,"");
	tbPwd.value  = tbPwd.value.replace(/^\s*|\s*$/g,"");
	
	if(tbUser.value.lenght == 0  || tbPwd.value.lenght == 0)
	{
		alert("Lütfen Kullanıcı adı ve şifrenizi giriniz");
	}
}
function trim(str)
{
   return str.replace(/^\s*|\s*$/g,"");
}