function preloader() 
{
     // counter
	      var i = 0;
     // create object
	      imageObj = new Image();
     // set image list
	      images = new Array();
		  images[0]="images/SiteBackground.gif";
		  images[1]="images/MenuBackgroundS.gif";
		  images[2]="images/MenuBackground.gif";
		  images[3]="images/MenuBackgroundMO.gif";
     // start preloading
	      for(i=0; i<=3; i++)
		  {
		    imageObj.src=images[i];     
		  }
} 
function menuover(menuname)
{
	document.getElementById(menuname).className = "MenuOver"; 
	document.getElementById("link" + menuname).className = "LinkMenuOver"; 
}
function menuout(menuname)
{
	document.getElementById(menuname).className = "MenuOut";
	document.getElementById("link" + menuname).className = "LinkMenuOut";
}
function goto(menuname)
{
	window.location = document.getElementById(menuname).href;
}

function sig(thisid)
{
	var strTmp = thisid;
	document.getElementById(strTmp).style.display = "";
}
function hig(thisid)
{
	var strTmp = thisid;
	document.getElementById(strTmp).style.display = "none";
}

function isValidEmail(str)
{
	if(str == "")
		return false

	apos=str.indexOf("@");
	dotpos = str.lastIndexOf(".");
	lastpos= str.length - 1;

	if (apos < 1 || dotpos - apos < 2 || lastpos - dotpos > 3 || lastpos - dotpos < 2)
 		return false;
	else
		return true;
}



function validateForm() 
{

	if(document.theform.ProductSelect.value == "Select Product")
	 {

		alert("Please select your product of interest.");
		return false;

	} else if(document.theform.name.value == "")
	 {

		alert("Please specify your first name.");
		document.theform.name.focus();
		return false;
		
		} else if(document.theform.LastName.value == "")
	 {

		alert("Please specify your last name.");
		document.theform.LastName.focus();
		return false;
		
	
	} else if(document.theform.Phone.value == "") 
	{

		alert("Please enter your telephone number.");
		document.theform.Phone.focus();
		return false;

	} else if(!isValidEmail(document.theform.Email.value)) 
	{

		alert("Please enter your e-mail address correctly")
		document.theform.Email.focus();
		return false;

	
	} else {

		return true;
	}
}