// JavaScript Document
/*
	For functions getElementsByClassName, addClassName, and removeClassName
	Copyright Robert Nyman, http://www.robertnyman.com
	Free to use if this text is included
*/
function getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}

function addClassName(elm, className){
    var currentClass = elm.className;
    if(!new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i").test(currentClass)){
        elm.className = currentClass + ((currentClass.length > 0)? " " : "") + className;
    }
    return elm.className;
}

function removeClassName(elm, className){
    var classToRemove = new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i");
    elm.className = elm.className.replace(classToRemove, "").replace(/^\s+|\s+$/g, "");
    return elm.className;
}

function activateThisColumn(column) {
	var table = document.getElementById('pricetable');
	
	// set the hidden field with the selected value
	document.getElementById('selected-choice').value = column;
	
	// first, remove the 'on' class from all other th's
	var ths = table.getElementsByTagName('th');
	for (var g=0; g<ths.length; g++) {
		removeClassName(ths[g], 'on');
	}
	// then, remove the 'on' class from all other td's
	var tds = table.getElementsByTagName('td');
	for (var m=0; m<tds.length; m++) {
		removeClassName(tds[m], 'on');
	}
	
	// now, add the class 'on' to the selected th
	var newths = getElementsByClassName(column, 'th', table);
	for (var h=0; h<newths.length; h++) {
		addClassName(newths[h], 'on');
	}
	// and finally, add the class 'on' to the selected td
	var newtds = getElementsByClassName(column, 'td', table);
	for (var i=0; i<newtds.length; i++) {
		addClassName(newtds[i], 'on');
	}
}

function goPay() {
	document.location.href = '/public/site/JoinUsReady.cfm?choice=' + escape(document.getElementById('selected-choice').value);
}