function checkquickly()
{
if ((document.searchquick.keyword.value.length<1) & (document.searchquick.biznature.value.length<1))
alert("请填写关键字或公司主要经营模式！");
else
document.searchquick.submit();
}
function checkindex()
{
if ((document.searchindex.company.value.length<1) & (document.searchindex.biznature.value.length<1) & (document.searchindex.companysize.value.length<1) & (document.searchindex.annualturnover.value.length<1) & (document.searchindex.product.value.length<1) & (document.searchindex.customer.value.length<1) & (document.searchindex.introduce.value.length<1) & (document.searchindex.province.value.length<1) & (document.searchindex.province_foreign.value.length<1) & (document.searchindex.city.value.length<1))
alert("请至少填写一项查询条件！");
else
document.searchindex.submit();
}