function isBlank(val) {
        if (val.length == 0) { return true; }
        for (var i=0; i < val.length; i++) {
                if ((val.charAt(i) != ' ') && (val.charAt(i) != "\t") && (val.charAt(i) != "\n")) { return false; }
        }
        return true;
}

function redirectPage(page) {
	return false; //for now
}


function checkAll2(checkboxes,flag,button) {
	var newValue=true;
    if(flag.value=='true') {
		newValue=true;
        flag.value='false';
        button.value='Uncheck All';
    } else {
		newValue=false;
        flag.value='true';
        button.value='Check All';
    }

    for(var i=0;i<checkboxes.length;i++) {
        checkboxes[i].checked = newValue;
    }

	return true;
}

function checkAll(checkboxes,value) {
	value = true;
    for(var i=0;i<checkboxes.length;i++) {
        checkboxes[i].checked = value;
    }
}
function checkemail(str){
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(str)) return true; else return false;
}

function checkurl(str) {
	var filter=/^http\:\/\/((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?).*$/i
	if (filter.test(str)) return true; else return false;
}

function validateCreditCard(s) {
var v = "0123456789";
var w = "";
for (var i=0; i < s.length; i++) {
x = s.charAt(i);
if (v.indexOf(x,0) != -1)
w += x;
}
var j = w.length / 2;
if (j < 6.5 || j > 8 || j == 7) return false;
var k = Math.floor(j);
var m = Math.ceil(j) - k;
var c = 0;
for ( i=0; i<k; i++) {
a = w.charAt(i*2+m) * 2;
c += a > 9 ? Math.floor(a/10 + a%10) : a;
}
for ( i=0; i<k+m; i++) c += w.charAt(i*2+1-m) * 1;
return (c%10 == 0);
}

function checklogin(str) {
	var filter=/^[\w-\ ]{4,16}$/i
	if (filter.test(str)) return true; else return false;
}

function checkpassword(str) {
	var filter=/^[\w-\ ]{6,16}$/i
	if (filter.test(str)) return true; else return false;
}

function checkdate(str) {
	var filter=/^\d\d\d\d-\d\d-\d\d$/
	if (filter.test(str)) return true; else return false;
}

function checkdate2(str) {
	var filter=/^\d{1,2}\/\d{1,2}\/\d{2,4}$/
	if (filter.test(str)) return true; else return false;
}

function check_usdate(str) {
  var filter=/^\d{1,2}\/\d{1,2}\/\d{2,4}$/
  if (filter.test(str)) return true; else return false;
}

function compare_dates(date1, date2){
	var arrDate1 = date1.split("/");
	var arrDate2 = date2.split("/");
	var rdate1= new Date(arrDate1[2],arrDate1[0]-1,arrDate1[1]);
	var rdate2= new Date(arrDate2[2],arrDate2[0]-1,arrDate2[1]);
	if ( rdate1 > rdate2) return false; else return true;
}

function checkoccupants(str) {
	var filter=/^\d$/
	if (filter.test(str)) return true; else return false;
}

function checknumber(str) {
	var filter=/^\d+$/
	if (filter.test(str)) return true; else return false;
}

function checkprice(str) {
	var filter=/^\d*(\.\d+)?$/
	if (filter.test(str)) return true; else return false;
}

function checkanynumber(str) {
	var filter=/^[\d\-]*(\.\d+)?$/
	if (filter.test(str)) return true; else return false;
}

function openPopup(theURL,w, h) {
        var left = (screen.width - w) / 2;
        var top = (screen.height - h) / 2;
        var twindow=window.open(theURL,'_blank',"toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,left="+left+",top="+top+",width="+w+",height="+h);
        twindow.focus();
}

function replaceLocation(href) {
    window.open(href,'_self',"",false);
    return;
}

function openPage(file,target) {
    if (target != '')
        target.window.location.href = file;
    else
        window.location.href = file;
}

function ShowTip(fArg) {
	var tooltipOBJ = (document.getElementById) ? document.getElementById('tt' + fArg) : eval("document.all['tt" + fArg + "']");
	if (tooltipOBJ != null) {
		var tooltipLft = (document.body.offsetWidth?document.body.offsetWidth:document.body.style.pixelWidth) - (tooltipOBJ.offsetWidth?tooltipOBJ.offsetWidth:(tooltipOBJ.style.pixelWidth?tooltipOBJ.style.pixelWidth:380)) - 30;
		var tooltipTop = 10;
		if  (navigator.appName == 'Netscape')  {
			tooltipTop = (document.body.scrollTop>=0?document.body.scrollTop+10:event.clientY+10);
 			tooltipOBJ.style.top = tooltipTop+"px";
			tooltipOBJ.style.left = tooltipLft+"px";
		} else {
			tooltipTop = (document.body.scrollTop>=0?document.body.scrollTop+10:event.clientY+10);
			tooltipTop = (document.body.scrollTop>=0?document.body.scrollTop+10:event.clientY+10);
			if ((event.clientX > tooltipLft) && (event.clientY < (tooltipOBJ.scrollHeight?tooltipOBJ.scrollHeight:tooltipOBJ.style.pixelHeight) + 10)) {
				tooltipTop = (document.body.scrollTop?document.body.scrollTop:document.body.offsetTop) + event.clientY + 20;
			}
			tooltipOBJ.style.left = tooltipLft;
			tooltipOBJ.style.top = tooltipTop;
		}
		tooltipOBJ.style.visibility = "visible";
	}
}

function HideTip(fArg) {
	var tooltipOBJ = (document.getElementById) ? document.getElementById('tt' + fArg) : eval("document.all['tt" + fArg + "']");
	if (tooltipOBJ != null) {
		tooltipOBJ.style.visibility = "hidden";
	}
}