function HideLabel(txtField)
{
	if(txtField.name=='username'){
		if(txtField.value=='Username')
			txtField.value = '';
		else
			txtField.select();
	}else if(txtField.name=='password'){
		if(txtField.value=='Password'){
			txtField.value = '';
			txtField.type = 'password';
		}
		else{
			txtField.type = 'password';
			txtField.select();
		}
	}
}

function ShowLabel(txtField)
{
	if(txtField.name=='username'){
		if(txtField.value.trim()=='')
			txtField.value = 'Username';
	}else if(txtField.name=='password'){
		if(txtField.value.trim()==''){
			txtField.value = 'Password';
			txtField.type = 'text';
		}
	}
}