/////////////////start ajax code/////////////////////
var http_request = false;
function makePOSTRequest(url, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			// set type accordingly to anticipated content type
			//http_request.overrideMimeType('text/xml');
			http_request.overrideMimeType('text/html');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
	http_request.open('POST', url, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}

//////////////// FORM APPROVE ////////////////
function changeApprove(form,disabled) {
	var xInput=form.getElementsByTagName("input");
	var xOption=form.getElementsByTagName("select");
	var xTextArea=form.getElementsByTagName("textarea");
	var bgcolor;
	var check = true;

	if(disabled == true) {
		bgcolor = "#EEE";
		disabled = true;
	} else {
		bgcolor = "#FFF";
		disabled = false;
	}

	if(check) {
		for(var i=0;i < xInput.length;i++) {
			switch(xInput[i].type) {
				case "text":
					xInput[i].readOnly=disabled;
					xInput[i].style.background=bgcolor;
					break;
				case "radio":
					xInput[i].disabled=disabled;
					break;
				case "checkbox":
					xInput[i].disabled=disabled;
					break;
			}
		}
		for(var i=0;i < xOption.length;i++) {
			xOption[i].disabled=disabled;
			xOption[i].style.background=bgcolor;
		}
		for(var i=0;i < xTextArea.length;i++) {
			xTextArea[i].disabled=disabled;
			xTextArea[i].style.background=bgcolor;
		}
	}

	return false;
}

function validateEmail(sVal){
    var rePat = /[a-zA-Z0-9_\.\-\+]+@[a-zA-Z0-9_\.\-\+]+\.[a-zA-Z]+$/;
    var bln = rePat.test(sVal);
    if(!bln){return false; }//"A valid email address is required.";}    
    return true;
}

var resolution = screen.width+'x'+screen.height;
var referrer = document.referrer;
var landing = document.URL;
var poststr = "resolution=" + encodeURI( resolution ) + "&referrer="    + encodeURI( referrer ) + "&landing=" + encodeURI( landing ) ;