window.onload = function() { new Effect.Opacity('',{duration:1.5, from:0.0, to:1.5}); }  
  
  function effect() {
   new Effect.Opacity('_content',{duration:1.5, from:0.0, to:1.5});
  } 

  function getContent(page) {  
   var oOptions = {
    method: "get",
    parameters: "page=" + page,
    onSuccess: function (oXHR, oJson) {
    displayContent(oXHR.responseText);
    },onFailure: function (oXHR, oJson) {
     displayContent("An error occurred: " +
     oXHR.statusText);
    }
   };
   var oRequest = new Ajax.Request("content.php",oOptions);
  } 
  function displayContent(sText) {
   $('mycontent').innerHTML = sText;
  }

  function getTab(page) {  
   var oOptions = {
    method: "get",
    parameters: "page=" + page,
    onSuccess: function (oXHR, oJson) {
    displayTab(oXHR.responseText);
    },onFailure: function (oXHR, oJson) {
     displayContent("An error occurred: " +
     oXHR.statusText);
    }
   };
   var oRequest = new Ajax.Request("tab.php",oOptions);
  } 
  function displayTab(sText) {
   var divTab = document.getElementById("tab_content");
   divTab.innerHTML = sText;
  }
    
  function datasaved(form){   
   if ( form.yourname.value == "" || form.yourname.value  == null){
     alert("You must enter your name.");
	 getContent('home');
	 getTab('home');
     return false;
   }
   if ( form.youremail.value == "" || form.youremail.value == null){
    alert("You must enter your email.");
	getContent('home');
	 getTab('home');
    return false;
   } else {        
    var regex = /^(([\-\w]+)\.?)+@(([\-\w]+)\.?)+\.[a-zA-Z]{2,4}$/;
    if( ! regex.test(form.youremail.value)){          
      alert("Please enter a valid email address");
	  getContent('home');
	 getTab('home');
      return false;
    }
   }
   if ( form.yourenquiry.value == "" || form.yourenquiry.value == null){
    alert("You must enter your messege.");
		 getContent('home');
	 getTab('home');
    return false;
   }
   
   $('contact-form').request({
    onComplete: function(){ alert('Thank you for contact us') }
   })
  }
  
  function validate_text(form) {
   if ( form.yourname.value == "" || form.yourname.value  == null){
     alert("You must enter your name.");
     return false;
   }
   if ( form.youremail.value == "" || form.youremail.value == null){
    alert("You must enter your email.");
    return false;
   } else {        
    var regex = /^(([\-\w]+)\.?)+@(([\-\w]+)\.?)+\.[a-zA-Z]{2,4}$/;
    if( ! regex.test(form.youremail.value)){          
      alert("Please enter a valid email address");
      return false;
    }       
   }       
   if ( form.yourenquiry.value == "" || form.yourenquiry.value == null){
    alert("You must enter your messege.");
    return false;
   }
  }