/**弹出层   开始*/.show_m_div { /**弹出层 */	display: none;	position: absolute;	top: 25%;	left: 25%;	padding: 8px;	z-index: 1002;}.bg_lockDiv { /**遮罩层 */	display: none;	height:100%;	width:100%;	position: absolute;	top: 0%;	left: 0%;	background-color: black;	z-index: 1001;	-moz-opacity: 0.7;	opacity: .70;	filter: alpha(opacity = 70);}/**弹出层   结束*/

 /** 无滚动条的 弹出层 */

function showMDiv(){	document.body.style.overflow="hidden";	$("#bg_lock_div").show();	$("#show_m_div").show();}function hiddenMDiv(){	document.body.style.overflow="";	$("#show_m_div").hide();	$("#bg_lock_div").hide();}

 /**有滚动条的 弹出层 */

function showMDiv(){	var bg_Width = document.documentElement.scrollWidth;	var bg_height = document.documentElement.scrollHeight;	$("#bg_lock_div").css({'width':bg_Width,'height':bg_height}).show();	$("#show_m_div").show();}function hiddenMDiv(){	$("#show_m_div").hide();	$("#bg_lock_div").hide();}