function checkinput()
{
    name = document.searchform.searchname.value;

    if(name == '')
    {
       alert('请输入关键字');
       return false;
    }

	if(name.indexOf("美的") >=0)
	{
		name = name.replace("美的", "askyaya_meidi_aaa");
	}
	name = name.replace("的", " ");
	name = name.replace("价格", "");

	if(name.indexOf("askyaya_meidi_aaa") >=0)
	{
		name = name.replace("askyaya_meidi_aaa", "美的");
	}

    /* name = name.replace(/,/g, " "); 可以不要那个斜杠*/

    name = name.replace(/\,/g, " ");
    name = name.replace(/\'/g, " ");
    name = name.replace(/\</g, " ");
    name = name.replace(/\>/g, " ");
    name = name.replace(/\//g, " ");
    name = name.replace(/\;/g, " ");
    name = name.replace(/\:/g, " ");
    name = name.replace(/\~/g, " ");
    name = name.replace(/\!/g, " ");
    name = name.replace(/\`/g, " ");
    name = name.replace(/\@/g, " ");
    name = name.replace(/\"/g, " ");
    name = name.replace(/\#/g, " ");
    name = name.replace(/\{/g, " ");
    name = name.replace(/\}/g, " ");
    name = name.replace(/\[/g, " ");
    name = name.replace(/\]/g, " ");
    name = name.replace(/\=/g, " ");
    name = name.replace(/\|/g, " ");
    name = name.replace(/\_/g, " ");
    name = name.replace(/\./g, " ");
    name = name.replace(/\-/g, " ");

    name = name.replace(/\?/g, " ");
    name = name.replace(/\%/g, " ");
    name = name.replace(/\^/g, " ");
    name = name.replace(/\&/g, " ");
    name = name.replace(/\*/g, " ");
    name = name.replace(/\(/g, " ");
    name = name.replace(/\)/g, " ");
    name = name.replace(/\+/g, " ");
    name = name.replace(/\\/g, " ");

    name = name.replace(/\\$/g, " ");

    document.searchform.searchname.value = trim(name);
    return true;
}

function doSearch() {
    if (checkinput()) {
           document.searchform.submit();
           return true;
    }
    return false;
}

function head_go(searchname)
{
    document.searchform.searchname.value= searchname;
    document.searchform.childidlist[0].selected = true;
    if(checkinput()) document.searchform.submit();
}

function product_hot(askyaya_header_dir)
{
	product_hot = new Array("001.html", "002.html", "003.html", "004.html");
	i = Math.floor(Math.random()*(product_hot.length));
	//alert(product_hot[i]);
	var des_url = askyaya_header_dir + "product_hot/" + product_hot[i];
	var s = "toolbar=no, status=yes, scrollbars=yes, resizable=yes, top=30,left=20,height=350,width=600, location=no, menubar=no";
	window.open(des_url, '', s);
}