function isCreditCard(textObj)
        {
        
            var ccNum;
            var odd = 1;
            var even = 2;
            var calcCard = 0;
            var calcs = 0;
            var ccNum2 = "";
            var aChar = '';
            var cc;
            var r;
          
          
            ccNum = textObj
            for(var i = 0; i!= ccNum.length; i++)
                {
                    aChar = ccNum.substring(i, i+1);
                    if(aChar == '-'){
                    continue;
                    }
                    ccNum2 = ccNum2 + aChar;
                }
                
            cc = parseInt(ccNum2); 
             
              
            if (cc == 0)
                {
                    return false;
                }
            r = ccNum.length/2;
            
            
            if (ccNum.length - (parseInt(r)*2)==0)
                {
                    odd = 2;
                    even = 1;
                }
                
               
                
             for (var x = ccNum.length-1; x>0; x--)   
                {
                    r = x/2;
                    if(r<1)
                    {
                        r++;
                    }
                    
                if(x - (parseInt(r)*2) != 0 )
                        {
                            calcs = (parseInt(ccNum.charAt(x-1))) * odd
                        }
                     else
                        {
                            calcs = (parseInt(ccNum.charAt(x-1))) * even;
                        }   
                        
                     if(calcs >=10)   
                        {
                            calcs = calcs - 10 + 1;
                        }
                      calcCard = calcCard + calcs;  
                }
                
                
                
                calcs = 10 - (calcCard % 10);
                if(calcs == 10)
                  {
                    calcs = 0;
                  }
                
               
                if (calcs == (parseInt(ccNum.charAt(ccNum.length - 1))))
                    {
                        return true;
                    }
                else
                {
                    return false;
                }    
        }