// cnatutorMaster.js


function checkEmail(email)
{
		var at="@";
		var dot=".";
		var lat=email.indexOf(at);
		var lstr=email.length;
		var ldot=email.indexOf(dot);
		var a; 
		
		if (
			(email.indexOf(at)==-1) ||
			(email.indexOf(at)==-1 || email.indexOf(at)==0 || email.indexOf(at)==lstr) ||
			(email.indexOf(dot)==-1 || email.indexOf(dot)==0 || email.indexOf(dot)==lstr) ||
			(email.indexOf(at,(lat+1))!=-1) ||
			(email.substring(lat-1,lat)==dot || email.substring(lat+1,lat+2)==dot) ||
			(email.indexOf(dot,(lat+2))==-1) ||
			(email.indexOf(" ")!=-1)
			)
		{
			a = "bad";
			return a;
		}
		
}

function toggleDiv(id,flagit) {
	if (flagit=="1"){
	if (document.layers) document.layers[''+id+''].visibility = "show"
	else if (document.all) document.all[''+id+''].style.visibility = "visible"
	else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "visible"
	}
	else
	if (flagit=="0"){
	if (document.layers) document.layers[''+id+''].visibility = "hide"
	else if (document.all) document.all[''+id+''].style.visibility = "hidden"
	else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "hidden"
	}
}


function toggleBox(szDivID, iState) // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.layers[szDivID].visibility = iState ? "show" : "hide";
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";
    }
    else if(document.all)	// IE 4
    {
        document.all[szDivID].style.visibility = iState ? "visible" : "hidden";
    }
}
function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}
function ltrim(stringToTrim) {
	return stringToTrim.replace(/^\s+/,"");
}
function rtrim(stringToTrim) {
	return stringToTrim.replace(/\s+$/,"");
}

String.prototype.trim = function() {
        return this.replace(/^\s+|\s+$/g,"");
}