def get_dom_tag_value(dom, tag_name):
    tag = dom.getElementsByTagName(tag_name)
    value = tag[0].firstChild.nodeValue.strip()
    return value
Return value of a tag from dom (XML file).
dataset/ETHPy150Open nasa-gibs/onearth/src/layer_config/bin/oe_configure_layer.py/get_dom_tag_value