0 javascript: var isChanged = document.getElementById('isChanged'); if (isChanged.value==0) {var search = document.getElementById('search'); search.value='';isChanged.value=1;} true true javascript: var isChanged = document.getElementById('isChanged'); if (isChanged.value==0) {var search = document.getElementById('search'); search.value='';} document.searchForm.submit(); btn_search_bg.gif