// JScript 文件
function ltrim(s){return s.replace( /^\s*/, "");}
//去右空格;
function rtrim(s){return s.replace( /\s*$/, "");}
//左右空格;
function trim(s){return rtrim(ltrim(s));}

function ValidPurchase()
{ 

    var obj = document.getElementById("inqueryform");

    if ( obj.txtcas )
    { 
     if(trim(obj.txtcas.value) !="" ) 
        {      
           var patn = /^[0-9]{2,7}-[0-9]{2}-[0-9]{1}$/;
            if(!patn.test(trim(obj.txtcas.value)))
            {
                alert("Please enter a valid cas registry number."); 
                return false ;
            }                       
        }                     
    }
    if(obj.replycas)
    {
    var cas1=obj.replycas.value;
    var cas2=cas1.substr(7);
       
       if(cas2=="")
       {
        alert("Please enter a cas!");
        obj.replycas.focus();
        return false;
       }

      if(cas2 !="")
      {
         var patn1 = /^[0-9]{2,7}-[0-9]{2}-[0-9]{1}$/;
            if(!patn1.test(trim(cas2)))
            {
                alert("Please enter a valid cas registry number."); 
                 obj.replycas.focus();
                return false ;
            }            
       }
     }  
    
    if ( obj.txtsubject)
    {
        if(trim(obj.txtsubject.value) =="" ) 
        {           
            alert("Please enter subject.");   
            return false;            
        }                     
    }
    
    
    if ( obj.replyemail)
    {
        var patn = /^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;

        if (!patn.test(obj.replyemail.value)  ){
            alert("Please enter a valid email.");
            obj.replyemail.focus();           
            return false; 
        }  
    } 
   
   
    if(obj.cbmcountry)
    {
        if ( obj.cbmcountry.value == "0")
        {
            alert("Please select your country."); 
            obj.cbmcountry.focus();
            return false ;
        } 
    }


    if ( obj.txtDescript)
    {
        if(trim(obj.txtDescript.value) =="" ) 
        {           
            alert("Please enter Description."); 
            obj.txtDescript.focus();
            return false ;
        }
    }
    return true ;
}