/*This function strips all the characters but number from the input box */
	function filterNum(strID)
  	{
		var str = document.getElementById(strID);
	    var regExp = /[0-9]+$/; 
	    if (regExp.test(str.value)){
	   		return true;
	   	}
	   	else {
	    	str.value='';
	   }
	}
	
  	function addRows(qty)
   	{
   		var totalNumofRows = qty;
   		var elemID= 0;
	   	var rowBegin = '<tr>';
	   	var rowEnd   = '</tr>';
   		/*If user enter 0 in the input box, prompt them to enter different number*/
   		if(totalNumofRows==0){
   	 		alert ('Number of rows can not be 0. Please enter a valid number of rows');
   	 		return false;
   		}
   		/*Before drawing new elements, lets just empty the tbody*/
    	$("#tblRows").empty();	      	
	   	/*Header Row Set Here*/
	   	headerRow = '<tr><td>Name</td><td>Email</td><td>Bar</td></tr>';
	   	/*Header Row Append Here*/
	   	$("#tblRows").append(headerRow);
	   	
	   	/*Loop over the number of rows and append the rows to the tbody*/   	
	   	for(var i=0; i<totalNumofRows; i++)
	   	{
		   	elemID = elemID + 1;
		    cellName  = '<td><input type="text" id="name_' + elemID + '" name="name_' + elemID + '" value=""></td>';
		   	cellEmail = '<td><input type="text" id="email_' + elemID + '" name="email_' + elemID + '" value=""></td>';
		   	cellBar   = '<td><input type="text" id="bar_' + elemID + '" name="bar_' + elemID + '" value=""></td>';
		   		   	
		   	str = rowBegin + cellName + cellEmail + cellBar + rowEnd;   	
		    $("#tblRows").append(str);
	   	}
    }   
    function submitForm(){
		totalNumofRows = $("#qty").val();
		for (var x=0; x<totalNumofRows; x++){
		elemID = x + 1;
			if($("#name_"+elemID).val()==''){
				alert('Please fill out the form below full attendee name is required.');
				return false;
			}
		}
		//The names have been entered lets submit the form now
		document.getElementById('orderForm').submit();
	}