/*only + - , . ( ) allowed*/
	  function isTelephone(evt)
	  {
		 var charCode = (evt.which) ? evt.which : event.keyCode
		 
		 if (charCode == 32 || charCode == 40 || charCode == 41 || charCode == 43 || charCode == 44 || charCode == 45 || charCode == 46)
		 return true;
		 
		 if (charCode > 31 && (charCode < 48 || charCode > 57))
		 return false;
	  }
	  
	  
	  
	  /*only comma and period allowed*/
	  function isNumber(evt)
	  {
		 var charCode = (evt.which) ? evt.which : event.keyCode
 
		 if (charCode == 44 || charCode == 46)
		 return true;
		 
		 if (charCode > 31 && (charCode < 48 || charCode > 57))
		 return false;
	  }
	  
	  
	  
	  	  /*only comma and period allowed*/
	  function onlyDecimalNumber(evt)
	  {
		 var charCode = (evt.which) ? evt.which : event.keyCode
 
		 if (charCode == 46)
		 return true;
		 
		 if (charCode > 31 && (charCode < 48 || charCode > 57))
		 return false;
	  }
	  
	  
	  
	  /*only numbers allowed*/
	  function isCredit(evt)
	  {
		 var charCode = (evt.which) ? evt.which : event.keyCode
 		 
		 if (charCode > 31 && (charCode < 48 || charCode > 57))
		 return false;
	  }
	  
	  
	  
	  
	  function CenterWindow()
	  {    
	        var x = (screen.availWidth / 2) - (document.body.clientWidth / 2);
            var y = ((screen.availHeight - 60) / 2) - (document.body.clientHeight / 2);
            x = (x > 0) ? x : 0;
            y = (y > 0) ? y : 0;
            window.moveTo(x, y);                
        }
        
    
    
    function Toggle(checkObject, tbID, tdID)
    {
        if(checkObject.checked)
            {
                document.getElementById(tdID).className = "tb5";
                document.getElementById(tbID).className = "textbox_darkborder_enabled";
                document.getElementById(tbID).focus();
            }
        else
            {
                document.getElementById(tdID).className = "tb5";
                document.getElementById(tbID).setAttribute("value","");
                document.getElementById(tbID).className = "textbox_darkborder_disabled";
            }
    }