var msg1003="User name required: Please enter a valid user name."
var msg1005="Password required: Please enter a valid password."

function getLoginIndex(fieldName){
	for(i=0; i< document.loginForm.length;i++){
		if(fieldName == document.loginForm.elements[i].name)
			return i;
	}

}
function isLoginEmpty(fname,msg){
	var index = getLoginIndex(fname);
	var val=document.loginForm.elements[index].value;
	var empty = true;
	for(var i=0;i<val.length;i++)
		{
			var ss=val.substring(i,i+1);
			if(ss != ' ')
				empty = false;
		}
	if(empty == true){
		alert(msg);
		document.loginForm.elements[index].value = "";
		document.loginForm.elements[index].focus();
		return false;
	}
	return true;
}
function checkLeftFormValues(loginForm){	
	if(document.PBMLoginForm != null)
		return true;
	else {
		var r = isLoginEmpty("loginValue",msg1003) && isLoginEmpty("passwordValue",msg1005);
	  
		if(r) {
      if(document.getElementById('submitbutton3'))
      {
        document.getElementById('submitbutton3').disabled = true;
      }
			return true;
		}
		else return false;
	}
}