function check(id){
				if (id == "searchchangjia"){
					if (document.searchchangjia.keyword.value=="请输入厂家名称或关键字" || document.searchchangjia.keyword.value==""){
						alert("请输入厂家名称或关键字！");
						document.searchchangjia.keyword.focus();
						return false;
					}
				}
				return true;
			}
document.writeln("<FORM id=searchchangjia onSubmit=\"return check(\'searchchangjia\');\" name=searchchangjia action=\"http://www.trippers.cn/soso.asp\">");
document.writeln("    <UL class=s_clear>");
document.writeln("      <LI>");
document.writeln("<INPUT style=\"WIDTH: 500px;\" id=keyword  value=\"请输入厂家名称或关键字\" onFocus=\"if (value ==\'请输入厂家名称或关键字\'){value =\'\'}\" onBlur=\"if (value ==\'\'){value=\'请输入厂家名称或关键字\'}\"  size=36 name=sosoKw >");
document.writeln("         </LI>");
document.writeln("      <LI>");
document.writeln("        <INPUT id=doSearch class=btnPostzc onMouseOver=\"this.className=\'btnPostzc btnPostzcOn\';\" title=点此立即搜索 onMouseOut=\"this.className=\'btnPostzc\';\" value=\" 搜 索 \" type=submit>");
document.writeln("         </LI><li style=\"padding-top:10px\"></li>");
document.writeln("    </UL>");
document.writeln("  </FORM>");