// education topic display
function edu_topic(catid,id) {
	newurl = "/edu_discussion_topics.php?cat=" + catid + "&id=" + id;
	WinId = window.open(newurl,target="EDUWind", "toolbar=no,location=no,directories=no,scrollbars=yes,resizable=yes,width=780,height=400");
}

// function to open the calculator window
function calcWin(calc) {
	calcurl = "/calculators/" + calc;
	WinId = window.open(calc,target="calcWind", "toolbar=no,location=no,directories=no,scrollbars=yes,resizable=yes,width=780,height=400");
}

function isAllSpaces(inputValue) {
  if(inputValue.search(/^\s*$/) != -1) {
    // the string contains just spaces or is empty
    return true;
  } else {
    // valid input
    return false;
  }
}

function isEmail(string) {
	if(string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/)!= -1){
		return true; 
	} else {  
		return false;
	}
}