function checkformSearch(frm) {
    var f_sk = frm.sk.value.trim();
	
	if (f_sk.length == 0) {
		alert('Please input a search keywords!');
		return false;
	} else if (f_sk.length<2) {
		alert('Please input a search term more than 1 character.');
        return false;
	} else if (f_sk.length>60) {
		alert('Please input a search term less than 60 characters.');
        return false;
	}
    //frm.action = '/trades_taipeishow.php';
    frm.submit();
}       
        
function checkform(type){
    var sendform = document.quickmail;
    
    if(sendform.name.value=="") {
        alert("Please Key In your Name");
        sendform.name.focus();
        return false;
    }
           
    if(sendform.email.value=="") {
        alert("Please Key In your email");
        sendform.email.focus();
        return false;
    }   
      
    if (sendform.email.value.indexOf ('@',0) == -1 || sendform.email.value.indexOf ('.',0) == -1 ) {
         alert("Your E-Mail ERROR");
         sendform.email.focus();
        return false;
    }

      //if(sendform.website.value=="")
      // {
      //    alert("Please Key In your Web Site");
      //    sendform.website.focus();
      //    return false;
      // }

    if(type!=0){
       //checkbox        
        var obj=document.getElementsByName("producrs[]");
        var len = obj.length;
        var checked = false;
        var j = 0;
        for (i = 0; i < len; i++)
        {
            if (obj[i].checked == true)
            {
               j++ ;
            }
        }
       
        if(j == 0){
           alert("Please Select Interesting products");
           return false;
        }
    }
      
    if(sendform.subject.value=="") {
      alert("Please Key In your subject");
      sendform.subject.focus();
      return false;
    }
       
    if(sendform.subject.value.length < 3){
      alert("Please Key In your subject more than 3 characters");
      sendform.subject.focus();
      return false;
    }

    if(sendform.messages.value=="") {
        alert("Please Key In your Messages");
        sendform.messages.focus();
        return false;
    }
       
    if(sendform.messages.value.length < 20){
        alert("Please Key In your Messages more than 20 characters");
        sendform.messages.focus();
        return false;
    }
       
    // Confirm Text
    if(sendform.authinput.value=="")
    {
        alert("Please Key In  Confirm Text");
        sendform.authinput.focus();
        return false;
    }else if(!checkvalue_Exists(sendform['authinput'])){
        alert('Notice! The field of Confirm Text is Wrong!!');
        chageImg('chage_img');
        sendform.authinput.value = "";
        sendform.authinput.focus();
        return false;
    }
    
    //sendform.action ="/trades_taipeishow_quickmail.php";
    sendform.submit();
}

function clearform(){
   sedmailform = document.quickmail;
   sedmailform.reset();
}

function tradesForm(){
	var result = document.getElementById("inquerytrades");
	result.style.display="";
}

function checkWordNumber(frmName, column, fieldName, limit){
    if (eval("document." + frmName + "." + column + ".value.length") > limit) {
        alert('The ' + fieldName + ' is over ' + limit + ' characters!');
        eval("document." + frmName + "." + column + ".value = document." + frmName + "." + column + ".value.substr(0,limit)");
    }
}