document.write('<form name="form1" id="form1" action="/module/casesshow/mysearch.asp" method="get" onsubmit="if(this.query.value==\'关键字…\' || this.query.value==\'\'){alert(\'请输入关键字\');this.query.focus();return false;}">');
document.write('<li>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;案例关键字:</li>');
document.write('<input type="hidden" name="space" value="0" />');
document.write('<input type="hidden" name="languages" value="2" />');
document.write('<input type="hidden" name="rn" value="9" />');
document.write('<label for="query"></label>');
document.write('<li><input name="query" type="text" value="关键字…" onfocus="if(this.value==\'关键字…\'){this.value=\'\'}" onblur="if(this.value==\'\'){this.value=\'关键字…\'}"/></li>');
document.write('<li><input name="button" class="button2" type="submit" value="确定"  onfocus="this.blur();" /></li>');
document.write('</form>');