document.getElementById("div_canshu").innerHTML="<div style='font-weight:bold; font-size:13px;'>规格选型<\/div><div style='width:700px;overflow-x:scroll;'><table><tr style='white-space:nowrap;'><td>产品范围<\/td><td>电源电压最大值<\/td><td>电源电压最小值<\/td><td>模块接口<\/td><td>射频频率<\/td><td>通道数<\/td><td>位置准确性<\/td><td>协议<\/td><\/tr><tr><td><select name='PV' id='SG2PV240' multiple><option value='240_5511'>-(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV240\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV510' multiple><option value='510_31741'>5.5V(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV510\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV511' multiple><option value='511_24010'>3V(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV511\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1171' multiple><option value='1171_66555'>串行(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1171\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1357' multiple><option value='1357_21972'>26MHz(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1357\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1555' multiple><option value='1555_23710'>32放大器(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1555\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1627' multiple><option value='1627_14281'>2.5m(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1627\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1708' multiple><option value='1708_44425'>GPRS(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1708\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><\/tr><\/table><\/div>";
function clearsel(nameid)
{
var PV=document.getElementById(nameid);
	for(var i=0;i<PV.length;i++)
    {
    	if(PV[i].selected==true)
        	PV[i].selected=false;
    }
}