#l_menu {
	margin: 0px;
	padding: 0px;
	float: left;
	width: 150px;
}
#l_menu li {
	margin: 0px;
	float:left;
}

#l_menu li a{
	display:block;
}

#l_menu li.btn1{
	background-image: url(img_common/left_m_1_o.gif);
}
#l_menu li.btn2{
	background-image: url(img_common/left_m_2_o.gif);
}
#l_menu li.btn3{
	background-image: url(img_common/left_m_3_o.gif);
}
#l_menu li.btn4{
	background-image: url(img_common/left_m_4_o.gif);
}
#l_menu li.btn5{
	background-image: url(img_common/left_m_5_o.gif);
}
#l_menu li.btn6{
	background-image: url(img_common/left_m_6_o.gif);
}
#l_menu li.btn7{
	background-image: url(img_common/left_m_7_o.gif);
}
#l_menu li.btn8{
	background-image: url(img_common/left_m_8_o.gif);
}
#l_menu li.btn9{
	background-image: url(img_common/left_m_9_o.gif);
}
#l_menu li.btn10{
	background-image: url(img_common/left_m_10_o.gif);
}
#l_menu li.btn11{
	background-image: url(img_common/left_m_11_o.gif);
}
#l_menu li.btn12{
	background-image: url(img_common/left_m_12_o.gif);
}
#l_menu li.btn13{
	background-image: url(img_common/left_m_13_o.gif);
}
#l_menu li.btn14{
	background-image: url(img_common/left_m_14_o.gif);
}

#l_menu li.btn15{
	background-image: url(img_common/left_m_15_o.gif);
}

#l_menu li.btn16{
	background-image: url(img_common/left_m_16_o.gif);
}

#l_menu li.btn17{
	background-image: url(img_common/left_m_17_o.gif);
}

#l_menu li.btn18{
	background-image: url(img_common/left_m_18_o.gif);
}

#l_menu li.btn19{
	background-image: url(img_common/left_m_19_o.gif);
}

#l_menu li.btn20{
	background-image: url(img_common/left_m_20_o.gif);
}

#l_menu li.btn21{
	background-image: url(img_common/left_m_21_o.gif);
}

#l_menu li a:hover {
	background-color:transparent;
}
#l_menu li a:hover img{
	visibility:hidden;
}