function image_over(img, obj) {
	obj.src = img;
}

function image_out(img, obj) {
	obj.src = img;
}

function delField(fieldlocation,fieldvalue) {
	if (fieldlocation.value == fieldvalue || fieldlocation.value == "") {
		fieldlocation.value =""
	}
}
function fillIfEmpty(fieldlocation,fieldvalue) {
	if (fieldlocation.value == "") {
		fieldlocation.value = fieldvalue;
	}
}