function selectAll() {
    id_list = document.cart.elements.length;
    for ( i=0 ; i<id_list ; i++ ){
        document.cart.elements[i].checked = true;
    }
}

function clearAll() {
    id_list = document.cart.elements.length;
    for ( i=0 ; i<id_list ; i++ ){
        document.cart.elements[i].checked = false;
    }
}


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;
        }


      if(sendform.code.value=="")
       {
          alert("Please Key In  Confirm Text");
          sendform.code.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)");
    }
}