IsHTML4Ok = 
	(((navigator.appName == "Netscape") && 
	(parseInt(navigator.appVersion) >= 3 )) || 
	((navigator.appName == "Microsoft Internet Explorer") && 
	(parseInt(navigator.appVersion) >= 4 )));

    if (document.images)
    { 
    
         menu1 = new Image();
         menu1.src = "images/whoweare.jpg";     
         menu1on = new Image();
         menu1on.src = "images/whoweare-on.jpg"; 
         
         menu2 = new Image();
         menu2.src = "images/product.jpg";                            
         menu2on = new Image();
         menu2on.src = "images/product-on.jpg";   
               
         menu3 = new Image();
         menu3.src = "images/inventory.jpg" ;                 
         menu3on = new Image();
         menu3on.src = "images/inventory-on.jpg";
         
         menu4 = new Image();
         menu4.src = "images/contact.jpg";
         menu4on = new Image();
         menu4on.src = "images/contact-on.jpg" ;   
                                                 
    } 
       
    function Swap(on,out) {
    
        temp = "menu" + on;
        
        if (out)  document.images[temp].src=eval(temp + "on.src");
        else      document.images[temp].src=eval(temp + ".src");
                 
    }
    
function Validate()  {	

     if (document.ContactFrm.SubjectTxt.value == "") {
		       alert("You must enter your title !")
		       document.ContactFrm.SubjectTxt.focus();	
		        return false;		              
	}
	
     if (document.ContactFrm.LNameTxt.value == "") {
		       alert("You must enter your last name !")
		       document.ContactFrm.LNameTxt.focus();	
		        return false;		              
	}
		    
    if  (document.ContactFrm.TelTxt.value == ""){
		        alert("You must enter your telephone number!")
		        document.ContactFrm.TelTxt.focus()
		        return false;		        
	}
		 
    if  (document.ContactFrm.CityTxt.value == ""){
		        alert("You must enter your city!")
		        document.ContactFrm.CityTxt.focus()
		        return false;		        
	}
					    
    if (document.ContactFrm.MessageTxt.value == ""){
		        alert("You must enter your comment!")
		        document.ContactFrm.MessageTxt.focus()
		        return false;
    }		         
}