function checkQuantity(){
	if(document.getElementById("quantity").value < 1 || !isNumericOnly(document.getElementById("quantity").value)){
		alert('Please enter a valid quantity');
		document.getElementById("quantity").focus();
		return false;
	}else{
		return true;
	}
	
}







// not currently in use


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 isNumericOnly(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 isEmail(sEmail){
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(sEmail)){
		return true;
	}else{
		return false;
	}
}

function checkEmail(){
		if(document.getElementById("email").value != document.getElementById("email_confirm").value){
			alert("Email addresses do not match");
			return false;
		}else{
			return true;
		}
	}