// JavaScript Document
var xmlHttp;
var sc_width;
var sc_heigh;
/***********************************************************************************************************/
/**************************************** AJAX FUNCTIONS ***************************************************/
/***********************************************************************************************************/
function GetXmlHttpObject(){
try{
	xmlHttp=new XMLHttpRequest();
  }
catch (e){
  try{
	  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	}
  catch (e){
	  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
  }
return xmlHttp;
}


function AjaxCheck(){
	if(xmlHttp==null){
		alert ("Your browser does not support AJAX!");
		return;
	} 	
}
/***********************************************************************************************************/
/**************************************** GENERAL FUNCTIONS ****************************************************/
/***********************************************************************************************************/
function validate_contact(){
	submitOK = true
	var at=document.getElementById("txtEmail").value.indexOf("@");
	var dot=document.getElementById("txtEmail").value.indexOf(".");
	var phone=document.getElementById("txtPhone").value;
	var name=document.getElementById("txtName").value;
	var query = document.getElementById("txtQuery").value;
	var err = "";
	if(at==-1 || dot==-1){
		err += "Not a valid e-mail address! \n";
		submitOK = false;
	}
	if(phone.length<1){
	 	err += "You must enter your contact phone number \n";
	 	submitOK=false;
	}
	if(name.length<1){
	 	err += "You must enter your name \n";
	 	submitOK=false;
	}
	if(query.length<1){
	 	err += "Plese enter a query \n";
	 	submitOK=false;
	}
	if(submitOK==false){
	 alert(err);
	}
	return submitOK;
}
function loadImage(img){
	//var new_img = new Image();
	//new_img.src = img;
	document.getElementById("main_image").src = img;
}
function setPos(){
		sc_width = document.body.clientWidth;
		sc_height = document.body.clientHeight;
		var pos = Math.round((sc_width - 950) + 15) / 2;
		var hpos = sc_height - 255;
		if(pos < 0){pos = 5;}
}
function loadScreen(){
		document.getElementById("load_screen").style.left = pos+"px";
		document.getElementById("load_screen").style.height = hpos+"px";
		document.getElementById("load_screen").style.display = "block";	
}