var ifCoupletLeft = false;
var ifCoupletRight = false;
function showDL(position, imgsrc, linkurl)
{
	var type = imgsrc.substring(imgsrc.length-3).toLowerCase();
	if(position == 'left')
	{
		if(type=='swf'){
			document.write('<div id="couplet_left" style="position: absolute;visibility:hidden;z-index:1;" align="left">');
			document.write('<div id="couplet_leftflash"><script type="text/javascript">if (typeof(cf)=="function") {cf("'+imgsrc+'","100","300","'+linkurl+'","0");}</scr'+'ipt></div>');
			document.write('<table width="100" bgcolor="#CCCCCC" border="0" cellpadding="0" cellspacing="0">');
			document.write('<tr><td style="padding-top:2px;padding-left:3px;"><a href="javascript:closeDL(\'left\');" style="font-size:12px;color:#000000;text-decoration:none;">关闭</a></td></tr>');
			document.write('</table>');
			document.write('</div>');
			ifCoupletLeft=true;
			adshowCouplet();
		} else {
			document.write('<div id="couplet_left" style="position: absolute;visibility:hidden;z-index:1;" align="left">');
			document.write('<div id="couplet_leftflash"><a href="'+linkurl+'" target="_blank"><img src="'+imgsrc+'" width="100" height="300" /></a></div>');
			document.write('<table width="100" bgcolor="#CCCCCC" border="0" cellpadding="0" cellspacing="0">');
			document.write('<tr><td style="padding-top:2px;padding-left:3px;"><a href="javascript:closeDL(\'left\');" style="font-size:12px;color:#000000;text-decoration:none;">关闭</a></td></tr>');
			document.write('</table>');
			document.write('</div>');
			ifCoupletLeft=true;
			adshowCouplet();
		}
	}
	else if (position == 'right')
	{
		if(type=='swf'){
			document.write('<div id="couplet_right" style="position: absolute;visibility:hidden;z-index:1" align="right">');
			document.write('<div id="couplet_rightflash"><script type="text/javascript">if (typeof(cf)=="function") {cf("'+imgsrc+'","100","300","'+linkurl+'","0");}</scr'+'ipt></div>');
			document.write('<table width="100" bgcolor="#CCCCCC" border="0" cellpadding="0" cellspacing="0">');
			document.write('<tr><td style="padding-top:2px;padding-left:3px;"><a href="javascript:closeDL(\'right\');" style="font-size:12px;color:#000000;text-decoration:none;">关闭</a></td></tr>');
			document.write('</table>');
			document.write('</div>');
			ifCoupletRight=true;
			adshowCouplet();
		} else {
			document.write('<div id="couplet_right" style="position: absolute;visibility:hidden;z-index:1" align="right">');
			document.write('<div id="couplet_rightflash"><a href="'+linkurl+'" target="_blank"><img src="'+imgsrc+'" width="100" height="300" /></a></div>');
			document.write('<table width="100" bgcolor="#CCCCCC" border="0" cellpadding="0" cellspacing="0">');
			document.write('<tr><td align="right" style="padding-top:2px;padding-right:3px;"><a href="javascript:closeDL(\'right\');" style="font-size:12px;color:#000000;text-decoration:none;">关闭</a></td></tr>');
			document.write('</table>');
			document.write('</div>');
			ifCoupletRight=true;
			adshowCouplet();
		}
	}
}


function closeDL (position)
{
	if(position == 'left')
	{
		ifCoupletLeft=false;
		document.getElementById('couplet_left').style.visibility='hidden';
	}
	else if(position == 'right')
	{
		ifCoupletRight=false;
		document.getElementById('couplet_right').style.visibility='hidden';
	}
}
function adshowCouplet ()
{
	if(document.body.offsetWidth > 1000){
		if(ifCoupletLeft)
		{
			document.getElementById('couplet_left').style.visibility='visible';
			document.getElementById('couplet_left').style.top=100+'px';
			document.getElementById('couplet_left').style.left=5+'px';
		}
		if(ifCoupletRight)
		{
			document.getElementById('couplet_right').style.visibility='visible';
			document.getElementById('couplet_right').style.top=100+'px';
			document.getElementById('couplet_right').style.right=5+'px';
		}
	}else{
		if(ifCoupletLeft)
		{
			document.getElementById('couplet_left').style.visibility='hidden';
		}
		if(ifCoupletRight)
		{
			document.getElementById('couplet_right').style.visibility='hidden';
		}
	}
	setTimeout(adshowCouplet,50)
}