function select_changed(num){ 
 for(i=1;i<=8;i++){
  if(num!=i){
	document.getElementById("nextOption"+i).style.display="none";
    document.getElementById("cls"+i).className="a01";
   } 
}
    document.getElementById("nextOption"+num).style.display= document.getElementById("nextOption"+num).style.display=="none"?"":"none";
    document.getElementById("cls"+num).className = document.getElementById("cls"+num).className=="a01"?"a02":"a01";
} 

function select_about(num){ 
 for(i=1;i<=4;i++){
  if(num!=i){
	document.getElementById("aboutOption"+i).style.display="none";
    document.getElementById("about"+i).className="a01";
   } 
}
    document.getElementById("aboutOption"+num).style.display= document.getElementById("aboutOption"+num).style.display=="none"?"":"none";
    document.getElementById("about"+num).className = document.getElementById("about"+num).className=="a01"?"a02":"a01";
}

function select_prod_changed(num){ 
 for(i=1;i<=8;i++){
  if(num!=i)
	  document.getElementById("cls"+i).className="a01";
}
    document.getElementById("cls"+num).className = document.getElementById("cls"+num).className=="a01"?"a02":"a01";
}

function select_solu_changed(num){ 
 for(i=1;i<=8;i++){
  if(num!=i)
	  document.getElementById("cls"+i).className="a01";
}
    document.getElementById("cls"+num).className = document.getElementById("cls"+num).className=="a01"?"a02":"a01";
}

    function toggle_visibility(id) {
	var e = document.getElementById(id);
    if((e.style.display == 'none') || (e.style.display == '' ))
    	e.style.display = 'block';
	else
    	e.style.display = 'none';
    }  

function psearch()
{
form1.action="/oversea/prodsearch.aspx";
form1.submit();
}