function form(myform, windowname)
{
if (! window.focus)return false;
window.open('', windowname, 'height=600,width=700,left=170,top=20,scrollbars=yes');
myform.target=windowname;
return true;
}

function clearText(thefield){
if (thefield.defaultValue==thefield.value)
thefield.value = ""
} 

function select(id){
for(i=0;i<4;i++){
document.getElementById('type_'+i).style.borderColor= '#4a4a4a';
document.search.type[i].checked=false;
}
document.getElementById('type_'+id).style.borderColor= '#aa0000';
document.search.type[id].checked=true;
}

function imposeMaxLength(Object, MaxLen)
{
  return (Object.value.length < MaxLen);
}

function showhide(id){
if (document.getElementById){
obj = document.getElementById(id);
if (obj.style.display == "none"){
obj.style.display = "block";
} else {
obj.style.display = "none";
}
}
}