function SwitchTabs(tab) {

	var summary = document.getElementById('Summary');
	var features = document.getElementById('Features');
	var specs = document.getElementById('Specs');
	//var photos = document.getElementById('Photos');

	summary.src="/images/Summary_down.gif";
	features.src="/images/Features_down.jpg";
	specs.src="/images/Specifications_down.jpg";
	//photos.src="/images/Photos_down.jpg";

	if(tab == "Summary"){
		summary.src="/images/Summary_up.gif";
	}else if(tab == "Features"){
		features.src="/images/Features_up.jpg";
	}else if(tab == "Specs"){
		specs.src="/images/Specifications_up.jpg";
//	}else if(tab == "Photos"){
	//	photos.src="/images/Photos_up.jpg";
	}
}



function changeTab ( tab, idProduct ) {

	var summary = document.getElementById('Summary');
	var features = document.getElementById('Features');
	var specs = document.getElementById('Specs');
	//var photos = document.getElementById('Photos');

	summary.src="/images/Summary_down.gif";
	features.src="/images/Features_down.jpg";
	specs.src="/images/Specifications_down.jpg";
	//photos.src="/images/Photos_down.jpg";

	if(tab == "Summary"){
		summary.src="/images/Summary_up.gif";
		summary.blur();
	}else if(tab == "Features"){
		features.src="/images/Features_up.jpg";
		features.blur();
	}else if(tab == "Specs"){
		specs.src="/images/Specifications_up.jpg";
		specs.blur();
	//}else if(tab == "Photos"){
//		photos.src="/images/Photos_up.jpg";
//		photos.blur();
	}

	var xmlHttp;
     try{
          // Firefox, Opera 8.0+, Safari
          xmlHttp=new XMLHttpRequest();
     } catch (e) {
          // Internet Explorer
          try {
               xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
          } catch (e) {
               try {
                    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
               } catch (e) {
                    alert("Your browser does not support AJAX!");
                    return false;
               }
          }
     }

     xmlHttp.onreadystatechange=function(){
          if(xmlHttp.readyState==4){
               document.getElementById('TabBody').innerHTML = xmlHttp.responseText;
          }
     }

     var url = "index.php";
	url += "?c=products";
	url += "&m=changeTab";
	url += "&tab=" + tab;
	url += "&idProduct=" + idProduct;

     xmlHttp.open("GET",url,true);
     xmlHttp.send(null);
}