gan_node_html.php
function deleteAttribute($attr, $compare = 'total', $case_sensitive = false) {
		$f = $this->findAttribute($attr, $compare, $case_sensitive);
		if (is_array($f) && $f) {
			foreach($f as $a) {
				unset($this->attributes[$a[2]]);
				if ($this->attributes_ns !== null) {
					unset($this->attributes_ns[$a[1]]);
				}
			}
		}
	}
function deleteAttribute($attr, $compare = 'total', $case_sensitive = false) {
		$f = $this->findAttribute($attr, $compare, $case_sensitive);
		if (is_array($f) && $f) {
			foreach($f as $a) {
				unset($this->attributes[$a[2]]);
				if ($this->attributes_ns !== null) {
					unset($this->attributes_ns[$a[1]]);
				}
			}
		}
	}
Delete attribute(s)
@param string|int $attr Negative int to count from end
@param string $compare Find node using "namespace", "name" or "total"
@param bool $case_sensitive Compare with case sensitivity