function prefillClear(id) {	
	var defaultValue = searchOption[0];
	var field = document.getElementById(id);
  if (defaultValue==field.value) 
  {
	field.value = '';
  }
  else if (field.value == '') 
  {
	field.value = defaultValue;
  }
}


function chkTrim(){
	var tmp;
	tmp = document.getElementById("keyword").value;
	if(tmp == searchOption[0]){
		return false;
	}		
	if(tmp.match(/^\s+$|^0$/) || tmp.length==0){
		document.getElementById("keyword").value="";
		document.getElementById("keyword").focus();
		return false;
	}
	return true;
}

function chkAll(){
	var tbs = document.getElementById('search_contentG').getElementsByTagName('INPUT');
	for (var zxc0 = 0;zxc0<tbs.length;zxc0++)
	{
		if(!tbs[zxc0].disabled){
			if(tbs[zxc0].id != "search_within" && tbs[zxc0].id != "isLargeThumb"){
				tbs[zxc0].checked = 'checked';
			}
		}
	}
}
function searchOptions(){	
	if(document.getElementById("adv_search").style.display=="none"){		
		document.getElementById("adv_search").style.display="";
		document.getElementById("cur_ser_opt").value = "advance";
		document.getElementById("lbl_search_options").className = "advance_up_SE";		
		document.getElementById("href_adv_search").innerHTML = searchOption[1];
		document.getElementById("hide").style.visibility="visible";
		chkAll();
	}else{
		document.getElementById("lbl_search_options").className = "advance_SE";		
		document.getElementById("cur_ser_opt").value = "simple";
		document.getElementById("adv_search").style.display="none"
		document.getElementById("href_adv_search").innerHTML = searchOption[2];
		document.getElementById("hide").style.visibility="hidden";
	}
}

function submitRecentSearch(obj){
	if(obj != '0'){
		document.getElementById("keyword").value = obj;
		submitForm();		
	}
}