document.write('<form action="/ic/">');
document.write('类&nbsp;&nbsp;型：');
document.write('<SELECT style="width:175px;" name="mfg" id="mfg">');
document.write('<option value="">请选择</option>');
document.write('<option value="A" >A</option>');
document.write('<option value="AD" >AD</option>');
document.write('<option value="ADI" >ADI</option>');
document.write('<option value="ADM" >ADM</option>');
document.write('<option value="ALLEGRO" >ALLEGRO</option>');
document.write('<option value="ALTERA" >ALTERA</option>');
document.write('<option value="AM" >AM</option>');
document.write('<option value="AMCC" >AMCC</option>');
document.write('<option value="AMD" >AMD</option>');
document.write('<option value="AMS" >AMS</option>');
document.write('<option value="AOS" >AOS</option>');
document.write('<option value="ASIC" >ASIC</option>');
document.write('<option value="ASM" >ASM</option>');
document.write('<option value="ATMEL" >ATMEL</option>');
document.write('<option value="AVAGO" >AVAGO</option>');
document.write('<option value="BB" >BB</option>');
document.write('<option value="BB/TI" >BB/TI</option>');
document.write('<option value="BITEK" >BITEK</option>');
document.write('<option value="BT" >BT</option>');
document.write('<option value="CHINA" >CHINA</option>');
document.write('<option value="CIRRUS" >CIRRUS</option>');
document.write('<option value="CYP" >CYP</option>');
document.write('<option value="CYPRESS" >CYPRESS</option>');
document.write('<option value="DALLAS" >DALLAS</option>');
document.write('<option value="DBL" >DBL</option>');
document.write('<option value="EPSON" >EPSON</option>');
document.write('<option value="F" >F</option>');
document.write('<option value="FAIRCHIL" >FAIRCHIL</option>');
document.write('<option value="FCCD" >FCCD</option>');
document.write('<option value="FEELING" >FEELING</option>');
document.write('<option value="FREESCAL" >FREESCAL</option>');
document.write('<option value="FSC" >FSC</option>');
document.write('<option value="FUJ" >FUJ</option>');
document.write('<option value="FUJITSU" >FUJITSU</option>');
document.write('<option value="GE" >GE</option>');
document.write('<option value="GOLD" >GOLD</option>');
document.write('<option value="GS" >GS</option>');
document.write('<option value="Hanrun" >Hanrun</option>');
document.write('<option value="HAR" >HAR</option>');
document.write('<option value="HCT" >HCT</option>');
document.write('<option value="HESHBNG" >HESHBNG</option>');
document.write('<option value="HIA" >HIA</option>');
document.write('<option value="HIT" >HIT</option>');
document.write('<option value="HY" >HY</option>');
document.write('<option value="HYNIX" >HYNIX</option>');
document.write('<option value="ICPLUS" >ICPLUS</option>');
document.write('<option value="IDT" >IDT</option>');
document.write('<option value="IMP" >IMP</option>');
document.write('<option value="IMS" >IMS</option>');
document.write('<option value="INT" >INT</option>');
document.write('<option value="INTEL" >INTEL</option>');
document.write('<option value="intersil" >intersil</option>');
document.write('<option value="ISOCOM" >ISOCOM</option>');
document.write('<option value="ISSI" >ISSI</option>');
document.write('<option value="KENDIN" >KENDIN</option>');
document.write('<option value="LATTICE" >LATTICE</option>');
document.write('<option value="LINEAR" >LINEAR</option>');
document.write('<option value="LPI" >LPI</option>');
document.write('<option value="LRC" >LRC</option>');
document.write('<option value="LT" >LT</option>');
document.write('<option value="M" >M</option>');
document.write('<option value="MAXIM" >MAXIM</option>');
document.write('<option value="MIC" >MIC</option>');
document.write('<option value="MICROCHI" >MICROCHI</option>');
document.write('<option value="MICRON" >MICRON</option>');
document.write('<option value="MIF-MAG" >MIF-MAG</option>');
document.write('<option value="MITEL" >MITEL</option>');
document.write('<option value="MN" >MN</option>');
document.write('<option value="MOC" >MOC</option>');
document.write('<option value="MOT" >MOT</option>');
document.write('<option value="MPS" >MPS</option>');
document.write('<option value="N/A" >N/A</option>');
document.write('<option value="NEC" >NEC</option>');
document.write('<option value="NS" >NS</option>');
document.write('<option value="NXP" >NXP</option>');
document.write('<option value="OKI" >OKI</option>');
document.write('<option value="OMRON" >OMRON</option>');
document.write('<option value="ON" >ON</option>');
document.write('<option value="PC" >PC</option>');
document.write('<option value="PECOR" >PECOR</option>');
document.write('<option value="PERICOM" >PERICOM</option>');
document.write('<option value="PHI" >PHI</option>');
document.write('<option value="PHILIPS" >PHILIPS</option>');
document.write('<option value="POWER" >POWER</option>');
document.write('<option value="PT" >PT</option>');
document.write('<option value="PTC" >PTC</option>');
document.write('<option value="PVI" >PVI</option>');
document.write('<option value="RAMTRON" >RAMTRON</option>');
document.write('<option value="S" >S</option>');
document.write('<option value="SAMSUNG" >SAMSUNG</option>');
document.write('<option value="SANYO" >SANYO</option>');
document.write('<option value="SB" >SB</option>');
document.write('<option value="SEC" >SEC</option>');
document.write('<option value="SEEQ" >SEEQ</option>');
document.write('<option value="SEP" >SEP</option>');
document.write('<option value="SGS" >SGS</option>');
document.write('<option value="SHARP" >SHARP</option>');
document.write('<option value="SILICON" >SILICON</option>');
document.write('<option value="SIPEX" >SIPEX</option>');
document.write('<option value="SN" >SN</option>');
document.write('<option value="SST" >SST</option>');
document.write('<option value="ST" >ST</option>');
document.write('<option value="STC" >STC</option>');
document.write('<option value="STTECH" >STTECH</option>');
document.write('<option value="TI" >TI</option>');
document.write('<option value="TI/BB" >TI/BB</option>');
document.write('<option value="TOS" >TOS</option>');
document.write('<option value="TOSHIBA" >TOSHIBA</option>');
document.write('<option value="UC" >UC</option>');
document.write('<option value="UMC" >UMC</option>');
document.write('<option value="UT" >UT</option>');
document.write('<option value="UTC" >UTC</option>');
document.write('<option value="VALOR" >VALOR</option>');
document.write('<option value="VHK" >VHK</option>');
document.write('<option value="VISHAY" >VISHAY</option>');
document.write('<option value="WINBOND" >WINBOND</option>');
document.write('<option value="XICOR" >XICOR</option>');
document.write('<option value="XILINX" >XILINX</option>');
document.write('<option value="XP" >XP</option>');
document.write('<option value="爱克斯" >爱克斯</option>');
document.write('<option value="长电" >长电</option>');
document.write('<option value="大S" >大S</option>');
document.write('<option value="广州中源" >广州中源</option>');
document.write('<option value="桂林大利" >桂林大利</option>');
document.write('<option value="国产" >国产</option>');
document.write('<option value="哈里斯" >哈里斯</option>');
document.write('<option value="红宝石" >红宝石</option>');
document.write('<option value="华邦" >华邦</option>');
document.write('<option value="汇众" >汇众</option>');
document.write('<option value="江苏华兴" >江苏华兴</option>');
document.write('<option value="康裕" >康裕</option>');
document.write('<option value="美格尔" >美格尔</option>');
document.write('<option value="宁波" >宁波</option>');
document.write('<option value="日立" >日立</option>');
document.write('<option value="三凌" >三凌</option>');
document.write('<option value="三菱" >三菱</option>');
document.write('<option value="三星" >三星</option>');
document.write('<option value="上海沪工" >上海沪工</option>');
document.write('<option value="上海厦明" >上海厦明</option>');
document.write('<option value="深圳" >深圳</option>');
document.write('<option value="松乐" >松乐</option>');
document.write('<option value="松下" >松下</option>');
document.write('<option value="温州泰华" >温州泰华</option>');
document.write('<option value="厦门宏发" >厦门宏发</option>');
document.write('<option value="仙童" >仙童</option>');
document.write('<option value="欣大" >欣大</option>');
document.write('<option value="欣灵" >欣灵</option>');
document.write('<option value="知名品牌" >知名品牌</option>');
document.write('<option value="-1">其他</option>');

document.write(' </SELECT>');
document.write('<span style="display:inline-block;">关键词：</span><input class="" name="Key" style="width:120px;" id="Key" size="15"  class="searchInput" onfocus="f()"  value="输入关IC键字" >');
document.write('<INPUT class="searchBtn" type="submit" onclick="return fc()" value="">');
document.write('</form>');

function f(){
var o  = document.getElementById("Key")
var s='输入关IC键字';
if(o.value == s ) 
{o.value = '';}
}
function fc(){

var o  = document.getElementById("Key")
var e  = document.getElementById("mfg")
//alert(e.options[e.selectedIndex].value)
var s='输入关IC键字';
if(o.value == s ) 
{o.value = '';}
if ((o.value == '') && (e.options[e.selectedIndex].value==''))
{alert('必须选择类别或者输入关键词！');
return false ;}
}