function checkChanges(){
	var testInput=document.getElementById("id_expression_default");
	var keywordsInput=document.getElementById("id_expression");
	if (testInput.value!=keywordsInput.value) {
		keywordsInput.style.color="#000";
	}
    var testInput2=document.getElementById("id_s_default");
	var sInput=document.getElementById("id_s");
	if (testInput2.value!=sInput.value) {
		sInput.style.color="#000";
	}
}


function gotFocus(obj) {
    var field = document.getElementById(obj.id);
    var exField = document.getElementById(obj.id+'_default');
    field.style.color = "#000";
    if (exField && (exField.value == field.value)) {
       field.value = "";
    }
}

function submitting(){
	var testInput=document.getElementById("id_keywordsDefault");
	var keywordsInput=document.getElementById("id_keywords");
	if (testInput.value==keywordsInput.value){
		keywordsInput.value="";
	}
}