function formClear(areaname,checkvalue,searchform){
	if(document.forms[searchform].elements[areaname].value == checkvalue){
		document.forms[searchform].elements[areaname].value = "";
	}
}
function formKeep(areaname,checkvalue,searchform){
	if(document.forms[searchform].elements[areaname].value == ""){
		document.forms[searchform].elements[areaname].value = checkvalue;
	}
}