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>封装/外壳<\/td><td>制造商<\/td><td>安装类型<\/td><td>工作温度<\/td><td>类型<\/td><td>系列<\/td><td>包装<\/td><td>零件状态<\/td><td>电压 - 电源<\/td><td>供应商器件封装<\/td><td>电压源<\/td><td>分辨率（位）<\/td><td>数据接口<\/td><td>采样率（每秒）<\/td><td>建立时间<\/td><td>位数<\/td><td>使用的 IC/零件<\/td><td>所含物品<\/td><td>DAC 类型<\/td><td>DAC 数<\/td><\/tr><tr><td><select name='PV' id='USA1PV2' multiple><option value='2_29455'>48-TQFP<\/option><option value='2_29648'>48-TQFP 裸露焊盘<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV2\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV3' multiple><option value='3_13791'>Analog Devices Inc.<\/option><option value='3_7471'>Exar Corporation<\/option><option value='3_6020'>Texas Instruments<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV3\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV4' multiple><option value='4_4'>表面贴装<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV4\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV6' multiple><option value='6_60'>0°C ~ 70°C<\/option><option value='6_141'>-40°C ~ 125°C<\/option><option value='6_37'>-40°C ~ 85°C<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV6\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV7' multiple><option value='7_38861'>视频数模转换器<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV7\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV8' multiple><option value='8_10'>-<\/option><option value='8_41778'>TxDAC?<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV8\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV9' multiple><option value='9_183'>带卷（TR）&nbsp;<\/option><option value='9_971'>托盘&nbsp;<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV9\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV16' multiple><option value='16_11211'>上次购买时间<\/option><option value='16_16'>在售<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV16\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV21' multiple><option value='21_38863'>1.65 V ~ 1.95 V，3 V ~ 3.6 V<\/option><option value='21_11203'>3 V ~ 3.6 V<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV21\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV28' multiple><option value='28_29996'>48-HTQFP（7x7）<\/option><option value='28_27178'>48-TQFP（7x7）<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV28\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV476' multiple><option value='476_9281'>单电源<\/option><option value='476_21527'>模拟和数字<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV476\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV716' multiple><option value='716_21066'>10 b<\/option><option value='716_17005'>8 b<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV716\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV717' multiple><option value='717_10'>-<\/option><option value='717_11977'>SPI<\/option><option value='717_9342'>并联<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV717\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV718' multiple><option value='718_38862' selected='selected'>180M<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV718\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV787' multiple><option value='787_162977'>31.2ns<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV787\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV790' multiple><option value='790_14420'>14<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV790\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV1069' multiple><option value='1069_162978'>AD9102<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV1069\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV1071' multiple><option value='1071_30995'>板<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV1071\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV1456' multiple><option value='1456_11281'>电流<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV1456\");' style='cursor:pointer; color:#F00;white-space:nowrap;'>重新选择<\/span><\/td><td><select name='PV' id='USA1PV1457' multiple><option value='1457_851'>1<\/option><\/select><br \/><span onclick='clearsel(\"USA1PV1457\");' 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;
    }
}