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>传感器类型<\/td><td>额定功率有效值<\/td><td>共振频率<\/td><td>灵敏度 (dB)<\/td><td>频率响应最大值<\/td><td>频率响应最小值<\/td><td>阻抗<\/td><\/tr><tr><td><select name='PV' id='SG2PV240' multiple><option value='240_5511'>-(2)<\/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='SG2PV292' multiple><option value='292_104925'>扬声器(2)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV292\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV585' multiple><option value='585_2833'>0.3W(1)<\/option><option value='585_7227'>0.5W(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV585\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV720' multiple><option value='720_5511'>-(2)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV720\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1076' multiple><option value='1076_5511'>-(2)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1076\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1252' multiple><option value='1252_32752'>4kHz(2)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1252\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1253' multiple><option value='1253_23193'>260Hz(2)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1253\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='SG2PV1969' multiple><option value='1969_40277'>64ohm(1)<\/option><option value='1969_56479'>8ohm(1)<\/option><\/select><br \/><span onclick='clearsel(\"SG2PV1969\");' 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;
    }
}