function urlencode(str) {
	str = escape(str);
	str = str.replace('+', '%2B');
	str = str.replace('%20', '+');
	str = str.replace('*', '%2A');
	str = str.replace('/', '%2F');
	str = str.replace('@', '%40');
	return str;
}


function toggleAllCheckboxes(frm)
{
	// get the form elements
	var el = frm.elements;
	var obj = el["guider"].checked;
	// loop through the elements...
	for(i=0;i<el.length;i++) {
	// and check if it is a checkbox
		if(el[i].type == "checkbox" ) {
			// if it is a checkbox...
			el[i].checked = obj;
		}
	}
}


function IsNumeric(sText)
{
	var ValidChars = "0123456789.";
	var IsNumber=true;
	var Char;

	for (ii = 0; ii < sText.length && IsNumber == true; ii++) 
    { 
        Char = sText.charAt(ii); 
		if (ValidChars.indexOf(Char) == -1) 
		{
            IsNumber = false;
        }
    }
    return IsNumber;
}


function setCSSClass( targetId, cls )
{   
	if (document.getElementById) {
		target = document.getElementById( targetId );
		target.setAttribute("class", cls); 
		target.setAttribute("className", cls); 
	}
} 

function makeVisible( targetId )
{   
	if (document.getElementById) {
		target = document.getElementById( targetId );
		target.style.display = "";
	}
} 
function makeInvisible( targetId )
{   
	if (document.getElementById) {
		target = document.getElementById( targetId );
		target.style.display = "none";
	}
} 


function toggleVisible( targetId )
{   
	if (document.getElementById) {
		target = document.getElementById( targetId );
		if (target.style.display == "none") {
			target.style.display = "";
		} else {
			target.style.display = "none";
		}
	}
} 

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}