// JavaScript Document
// JavaScript Document
 
 function add_input(){
	 
	 
	 
 /*
 	var table = document.getElementById('frm_custom');
	var numrows = table.rows.length;
	//alert(table.rows[0]);
	var c7 = numrows+1+".";
	var c1 = table.rows[0].cells[1].innerHTML;
	var c2 = table.rows[0].cells[2].innerHTML;
	var c3 = table.rows[0].cells[3].innerHTML;
	var c4 = table.rows[0].cells[4].innerHTML;
	var c5 = table.rows[0].cells[5].innerHTML;
	var c6 = table.rows[0].cells[6].innerHTML;
	

	var row = 	table.insertRow(numrows);
	row.insertCell(0).innerHTML = c7;
 	row.insertCell(1).innerHTML = c1;
	row.insertCell(2).innerHTML = c2;
	row.insertCell(3).innerHTML = c3;
	row.insertCell(4).innerHTML = c4;
	row.insertCell(5).innerHTML = c5;
	row.insertCell(6).innerHTML = c6;
	
	var change = document.getElementsByName('txtSex[]');
	change[numrows].id = numrows;
	
 	var old = document.getElementById('amount').innerHTML;
	document.getElementById('amount').innerHTML=old*2;
 	*/
 }
 function cal(){
		var total = 0;
	 	var price = document.getElementById('price').innerHTML;
		var table = document.getElementById('frm_custom');
		var numrows = table.rows.length;
	 	var c6 = table.rows[0].cells[6].getElementsByTagName('input');
	 	var isnum = IsNumeric(c6[0].value)
		if(isnum == false){
			
		alert("Please Enter Number");	
			c6[0].value="";
		}
	 }
	 
function IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }