// JavaScript Document
function spaceRP(str){	
	str = str.replace(/(\　)+/g, " ");  //将全角空格替换为半角空格
	str = str.replace(/(\ )+/g, " ");
	return str;
}

function trim(str)
{
        var i = 0;
        var len = str.length;
        if ( str == "" ) return( str );
        j = len -1;
        flagbegin = true;
        flagend = true;
        while ( flagbegin == true && i< len)
        {
           if ( str.charAt(i) == " " )
                {
                  i=i+1;
                  flagbegin=true;
                }
                else
                {
                        flagbegin=false;
                }
        }
        while  (flagend== true && j>=0)
        {
            if (str.charAt(j)==" ")
                {
                        j=j-1;
                        flagend=true;
                }
                else
                {
                        flagend=false;
                }
        }
        if ( i > j ) return ("")
        trimstr = str.substring(i,j+1);
        return trimstr;
}


function isnumber (str){
         //var regu = "^([a-zA-Z]+[_0-9a-zA-Z@.-]*)$"
         var regu = "^[0-9]*$"
         var re = new RegExp(regu);
         if (str.search(re) != -1) {
               return true;
         } else {
               return false;
         }
}

function mailcheck(madd){
	var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|NET|com|COM|gov|GOV|mil|MIL|org|ORG|edu|EDU|int|INT)$"
	var re = new RegExp(regu);
	if (madd.search(re) != -1) {
		return true;  //地址正确
	} else {
		return false;//地址错误
	}
}


function kwvd() {
		if (trim(document.kwsearch.kw.value)=='') {
                window.alert ("请输入公司名称。");
                return false
        }
        return true

}
function pfvd() {
	
	if(document.getElementById("pref_cn").style.display == ""){
		if (document.addsearch.pref.value==0) {
                window.alert ("请选择中国省市");
                return false
        }
	return true
	}
	
	if(document.getElementById("pref_ja").style.display == ""){
		if (document.addsearch.prefja.value==0) {
                window.alert ("请选择日本都道府县！");
                return false
        }
	return true
		
	}

}
function akvd() {
		var keyword = trim(document.keysearch.alkw.value)
		document.keysearch.alkw.value = spaceRP(keyword);
		if (keyword=='') {
                window.alert ("请输入关键字。");
                return false
        }
	return true

}	
function csvd() {
		if (document.classsearch.lclasslist.value==0) {
                window.alert ("请选择大分类。");
                return false
        }
		if (document.classsearch.m_class.value==0) {
                window.alert ("请选择中分类。");
                return false
        }
	return true

}	

function validate(pages) {
		var gotopage = trim(document.gotopage.page.value);
		if (gotopage == '') {
                window.alert ("请输入页数。");
                return false;
        }

		if (gotopage > pages) {
			window.alert("请输入正确的页数。");
			return false;
        }

		if (gotopage <= 0 ) {
                window.alert ("请输入正确的页数。");
                return false
        }

		if(!isnumber(gotopage)){
               window.alert ("请输入半角数字。");
			    return false
		}
        return true

}

function ckmail() {
	error = false;
	msg = "请输入以下必填项目。\n";

	if (trim(document.getElementById('companyname').value)=='') {
		msg = msg + "\n※公司名\n";
		error = true;

	}

	if (trim(document.getElementById('address').value)=='') {
		msg = msg + "\n※地址\n";
		error = true;
	}

	if (trim(document.getElementById('tel').value)=='') {
		msg = msg + "\n※电话\n";
		error = true;
	}


	if (trim(document.getElementById('linkman').value)=='') {
		msg = msg + "\n※联系人\n";
		error = true;
	}
	
	
	if (trim(document.getElementById('mailaddress').value)=='') {
		msg = msg + "\n※Email\n";
		error = true;
	}else{
		if(!mailcheck(document.getElementById('mailaddress').value)){
			msg = msg + "\n※Email格式不正确。\n";
			error = true;
		}
	}



	if(error){
		window.alert(msg);
		return false;
	}

	return true

}

function jtcheck(){
	if(trim(document.toku_search.keyword.value) == ''){
		  window.alert ("请输入要查找的商品名称！");
          return false
	}
	return true;	
}