function check(){
var item1 = "";
for(i=0;i<34;i++){
if(document.form1.wood[i].checked){
item1=item1+"c"+document.form1.wood[i].value+" ";
}
}
document.form1.search.value = item1;
}


/*
function check(){
var item1 = "";
var item2 = "";
for(i=0;i<22;i++){
if(document.form1.wood1[i].checked){
item1=item1+"c"+document.form1.wood1[i].value+" ";
}
}
for(i=0;i<10;i++){
if(document.form1.wood2[i].checked){
item1=item1+"c"+document.form1.wood2[i].value+" ";
}
}
document.form1.search.value = item1+item2;
}
*/