function ChecksearchForm() 
{ 
if ((document.sform.skey.value.length<2)||(document.sform.skey.value=='请输入至少两个字符的搜索关键字'))
{
alert("请输入至少两个字符的搜索关键字！");
document.sform.skey.focus();
return false; 
}
return;
} 
document.writeln("	<form name=\"sform\" action=\"\/search\/search.html\" method=\"post\" onSubmit=\"return ChecksearchForm();\">");
document.writeln("	<div style=\"float:left;\"><input type=\"text\" name=\"skey\" class=\"searchinput\" value=\"请输入至少两个字符的搜索关键字\" onclick=\"this.value=\'\'\"><\/div>");
document.writeln("	<div style=\"float:left; margin-left:5px; margin-top:2px;\"><input type=\"submit\" name=\"submitx\" value=\"搜 索\" class=\"input\" onmouseover=\"this.className=\'inputover1\'\" onmouseout=\"this.className=\'input\'\"\/><\/div>");
document.writeln("	<div class=\"search1\">");
document.writeln("	<input name=\"s\" type=\"radio\" value=\"product\" checked>建材产品");
document.writeln("	<input name=\"s\" type=\"radio\" value=\"trade\">材料供求");
document.writeln("	<input name=\"s\" type=\"radio\" value=\"company\">公司库");
document.writeln("	<input name=\"s\" type=\"radio\" value=\"pics\">装饰图库");
document.writeln("	<input name=\"s\" type=\"radio\" value=\"news\">家装资讯");
document.writeln("	<\/div>");
document.writeln("	<\/form>")