function clear_value(myid,deflt)
{
	if ( deflt )
	{
		if ( deflt == myid.value )
		{
			myid.value='';
		}
	}
	else
	{
		myid.value='';
	}
}

function reset_value(myid,deflt)
{
	if ( myid.value == '' )
	{
		myid.value = deflt;
	}
}
function changeDivClass(divID, newclass){
	
	if(document.layers){ // browser="NN4";
	 //	document.layers.divID.bgColor = newcolor;
	}
	if(document.getElementById){ // browser="NN6+ or IE5+ if you're willing to dump the !document.all stuff";
		document.getElementById(divID).className = newclass;
	}
}
function ShowMessageBox( divId,divId1){
	document.getElementById(divId).style.display = "block";
	document.getElementById(divId1).style.display = "none";
	document.getElementById(divId1+"1").style.display = "block";
}
function HidMessageBox( divId,divId1){
	document.getElementById(divId).style.display = "none";
	document.getElementById(divId1).style.display = "block";
	document.getElementById(divId1+"1").style.display = "none";
}
function IsNumeric(sText)

{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }
  
function ChecknumericVal(tdId){
 
var num  =  IsNumeric(document.getElementById(tdId).value );

if(num==false){
        alert("Value should be numeric");
        document.getElementById(tdId).value=null;
}

}