function switchKeywordType(objname, stype) {
	var sclass_1;
	var sclass_2;
	var sclass_3;
	
	if(stype == 'kt'){
		sclass_1 = 'kt_bg1';
		sclass_2 = 'kt_bg2';
		sclass_3 = 'kt_bg3';
	}
	
	if(objname == 'keyword_type_all'){
		document.getElementById('keyword_type_all').className = sclass_2;
		document.getElementById('keyword_type_job').className = sclass_3;
		document.getElementById('keyword_type_company').className = sclass_3;
		document.getElementById('t_searchType').value=1;
	}
	
	if(objname == 'keyword_type_job'){
		document.getElementById('keyword_type_all').className = sclass_1;
		document.getElementById('keyword_type_job').className = sclass_2;
		document.getElementById('keyword_type_company').className = sclass_3;
		document.getElementById('t_searchType').value=2;
	}
	
	if(objname == 'keyword_type_company'){
		document.getElementById('keyword_type_all').className = sclass_1;
		document.getElementById('keyword_type_job').className = sclass_1;
		document.getElementById('keyword_type_company').className = sclass_2;
		document.getElementById('t_searchType').value=3;
	}
}