//url & name are mandatory, the other parameters are optional and will take
	//default values
	function openwindow(url,name,width,height,scrollbars,resizable) {
		if(width==null) width='480';
		if(height==null) height='400';
		if(scrollbars==null) scrollbars='no';
		if(resizable==null) resizable='no';
		var options = 'scrollbars=' + scrollbars + ',resizable=' + resizable + ',width=' + width + ',height=' + height;
		window.open(url,name,options);
	}

	function submitForm(formname)
	{
	  document.forms[formname].submit();
	}
  
	function pop_and_post(the_form,url,height,width) {
	   my_form = eval(the_form)
	   if(checkForm(my_form)) {
		   my_window = window.open(url, "popup", "height="+height+",width="+width+",menubar=0,toolbar=0,location=1,status=1,scrollbars=1,resizable=1");
		   my_form.target = "popup";
		   my_form.action = url;
		   my_form.submit();
	   }
	}
  
  
  function formatCurrency(num) {
    num = num.toString().replace(/\$|\,/g,'');
    if(isNaN(num))
    num = "0";
    sign = (num == (num = Math.abs(num)));
    num = Math.floor(num*100+0.50000000001);
    cents = num%100;
    num = Math.floor(num/100).toString();
    if(cents<10)
    cents = "0" + cents;
    for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
    num = num.substring(0,num.length-(4*i+3))+','+
    num.substring(num.length-(4*i+3));
    return (((sign)?'':'-') + '$' + num + '.' + cents);
 }
 
 function enterInteger(myObj)
 {
 	var oldstring = myObj.value;
	var newstring = parseFloat(oldstring).toString();
	if (oldstring.length != newstring.length || newstring == "NaN") {
		//alert("Input is not a number");
		myObj.value="";
	}
 }
 
 function enterNumber(myObj)
 {
	if (isNaN(myObj.value)) {
		//alert("Input is not a number");
		myObj.value="";
	}
 }