<!--
var frmact=new Array();
var frmA,frmB,frmC,frmD,frmE;
frmA="<input name='type2' type='hidden' id='type2' value='' /><input name='keyword' type='text' id='keyword' size='69' maxlength='50'/>";
frmB="<select name='type2' id='type2'><option value='qymc'>按公司名称</option><option value='sell'>按要销售的产品</option><option value='buy'>按要采购的产品</option></select><input name='keyword' type='text' id='keyword' size='50' maxlength='50'/>";
frmC="<select name='type2' id='type2'><option value='interview'>按招聘职位</option><option value='talent'>按人才技能</option></select><input name='keyword' type='text' id='keyword' size='54' maxlength='50'/>";
frmD="<select name='type2' id='type2'><option value='qymc'>按公司名称</option><option value='sell'>按要销售的产品</option><option value='buy'>按要采购的产品</option></select><input name='keyword' type='text' id='keyword' size='50' maxlength='50'/>";
frmE="<select name='type2' id='type2'><option value='sell'>出口销售</option><option value='buy'>出口求购</option></select><input name='keyword' type='text' id='keyword' size='56' maxlength='50'/>";

frmact[0]="销售市场关建字：";
frmact[1]="求购市场关建字：";
frmact[2]="企业链关建字：";
frmact[3]="人才市场关建字：";
frmact[4]="出口贸易关建字：";
frmact[5]="中国区域特色产业关建字：";
function search_change(str){
switch (str){
case "2":document.all("keyw").innerHTML=frmB;return false;
case "3":document.all("keyw").innerHTML=frmC;return false;
case "4":document.all("keyw").innerHTML=frmE;return false;
case "5":document.all("keyw").innerHTML=frmD;return false;
default:document.all("keyw").innerHTML=frmA;return false;
}
}
function search_frm(){
 if (document.sear_frm.keyword.value=='')
 {alert('请输入关键字后在查询');document.sear_frm.keyword.focus();}
 else
 {document.sear_frm.submit();}
}
var key=new Array;
function search_frm(n){
var temp=trim(sear_frm.keyword.value);
if (temp==""){alert("请输入您要查询的关键字!");return false;}
if (temp.length<2){alert("关键字长不能低于2个字!");return false;}
str_cute(temp);
sear_frm.key0.value=key[0];
sear_frm.key1.value=key[1];
sear_frm.key2.value=key[2];
if (n==1){sear_frm.submit();}
}
function str_cute(keyword){
//关键字分析
key[0]=keyword
//关键字只有两位的
if (keyword.length==2){
key[1]="";
key[2]="";
return false;
}
if (checkIsChinese(keyword)){
//关键字中只有中文的
if(keyword.length<5){
key[1]=keyword.substring(keyword.length-2,keyword.length);
key[2]=keyword.substring(0,2);
}else{
key[1]=keyword.substring(2,keyword.length);
key[2]=keyword.substring(4,keyword.length);
}
if (key[2]==key[1]){keyword.substring(keyword.length-2,keyword.length);}
if (key[2].length==1){key[2]=keyword.substring(keyword.length-2,keyword.length);}
return false;
}
var keylist=new Array;
//关键字中仅英文字母
pattern = /^([a-zA-Z])+$/g;
if (pattern.test(keyword)){
key[1]="";
key[2]="";
return false
}
//关键字中只有非中文的
var pattern =/^([\x00-\xFE])/g;
if (keyword.replace(/[\x00-\xFE]/g,"")==""){
keylist=keyword.split(/([\x00-\x40]|[\x5B-\x60]|[\x7B-\xFE])/g)
key[1]=keylist[0];
key[2]="";
return false
}
//关键字中,中英文混合的
keylist=keyword.split(/[\x00-\xFE]/g);
var i;
i=keylist.length-1;
key[1]=keylist[i];
for(i;i>=0;i--){if (keylist[i].length>key[1].length){key[1]=keylist[i];}}
if(key[1].length<3){key[2]="";}
if(key[1].length==3){key[2]=key[1].substring(1,3);}
if(key[1].length>3){key[2]=key[1].substring(2,key[1].length);}
return false;
}
-->