document.getElementById('text1').value = "bla";
ok( $("#text1").val() == "bla", "Check for modified value of input element" );
$("#text1").val('test');
ok ( document.getElementById('text1').value == "test", "Check for modified (via val(String)) value of input element" );
document.getElementById('text1').value = "bla";
ok( $("#text1").val() == "bla", "Check for modified value of input element" );
$("#text1").val('test');
ok ( document.getElementById('text1').value == "test", "Check for modified (via val(String)) value of input element" );