function schpkssub()
{
	if(document.theformp.keyword.value=="关键字搜索...")
	{
		if(((!checkEmpty(document.theformp.vocation.value)))&&(!checkEmpty(document.theformp.persDesiredWorkProvince.value)))
		{
			alert("行业、省市、关键字，三者必选其一！")
			return false;
		}else{ 
			document.theformp.action="http://www.528.com.cn/ky_pAsearch.jsp";//searchp.do";
			return true;
		}
	}else{
    document.theformp.action="http://www.528.com.cn/ky_pAsearch.jsp";
    return true;
	}
}

function checkEmpty(value)
{
    if(value.length == 0)
    return false;
    var i = 0;
    while(i < value.length)
    {
        if(value.substring(i,i+1) != ' ')
        {
            return true;
        }
        i++;
    }
    return false;
}