///区域表单
cityareaname=new Array(35);
cityareacode=new Array(35);

function first(preP,preC,formname,selectP,selectC)
   {
     a=0;

if (selectP=='01')
  { a=1;tempoption=new Option('无缝钢管','无缝钢管',false,true); }
else
  { tempoption=new Option('无缝钢管','无缝钢管'); }
eval('document.'+formname+'.'+preP+'.options[1]=tempoption;');
cityareacode[0]=new Array('0101','0102','0103','0104');
cityareaname[0]=new Array('45#','35#','20#','10#');

if (selectP=='02')
  { a=2;tempoption=new Option('精密无缝钢管','精密无缝钢管',false,true); }
else
  { tempoption=new Option('精密无缝钢管','精密无缝钢管'); }
eval('document.'+formname+'.'+preP+'.options[2]=tempoption;');
cityareacode[1]=new Array('0801','0802','0803','0804');
cityareaname[1]=new Array('10#','20#','35#','45#');

if (selectP=='03')
  { a=3;tempoption=new Option('焊管','焊管',false,true); }
else
  { tempoption=new Option('焊管','焊管'); }
eval('document.'+formname+'.'+preP+'.options[3]=tempoption;');
cityareacode[2]=new Array('1001','1002','1003','1004','1005');
cityareaname[2]=new Array('45#','35#','20#','10#','16Mn');

if (selectP=='04')
  { a=4;tempoption=new Option('合金管','合金管',false,true); }
else
  { tempoption=new Option('合金管','合金管'); }
eval('document.'+formname+'.'+preP+'.options[4]=tempoption;');
cityareacode[3]=new Array('1201','1202','1203','1204','1205','1206','1207','1208','1209','1210','1211','1212');
cityareaname[3]=new Array('30CrMnSi','20CrMnTi','38CrMoAl','35CrMo','20CrMo','50CrV','40Cr','20Cr','45Mn2','27SiMn','40Mn2','16Mn（Q345B）');

if (selectP=='05')
  { a=5;tempoption=new Option('螺旋管','螺旋管',false,true); }
else
  { tempoption=new Option('螺旋管','螺旋管'); }
eval('document.'+formname+'.'+preP+'.options[5]=tempoption;');
cityareacode[4]=new Array('1401','1402','1403','1404');
cityareaname[4]=new Array('Q235A','Q235B','Q235C','Q235D');

eval('document.'+formname+'.'+preP+'.options[a].selected=true;');

cityid=selectP;
    if (cityid!='0')
      {
        b=0;for (i=0;i<cityareaname[cityid-1].length;i++)
           {
             if (selectC==cityareacode[cityid-1][i])
               {b=i+1;tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i],false,true);}
             else
               tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i]);
            eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;');
           }
        eval('document.'+formname+'.'+preC+'.options[b].selected=true;');
      }
    }

function selectcityarea(preP,preC,formname){
     cityid=eval('document.'+formname+'.'+preP+'.selectedIndex;');
     j=eval('document.'+formname+'.'+preC+'.length;');
     for (i=1;i<j;i++){
		 eval('document.'+formname+'.'+preC+'.options[j-i]=null;')
	}
     if (cityid!="0"){
		 
         for (i=0;i<cityareaname[cityid-1].length;i++){
             tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i]);
             eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;');
            }
			
       }
}
//区域表单结束