function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


function changeTo(str,image){
	
			document.getElementById('Image63').src="images/product-features.jpg";
			document.getElementById('Image62').src="images/product-specification.jpg";
			document.getElementById('Image61').src="images/product-additional.jpg";
			
			if(image == "Image63"){
				document.getElementById('Image63').src="images/product-features-hover.jpg";
			}
			else if(image == "Image62"){
				document.getElementById('Image62').src="images/product-specification-hover.jpg";
			}
			else{
				document.getElementById('Image61').src="images/product-additional-hover.jpg";
			}
	
			var a=new Array();
			a=document.getElementById('cat_box').getElementsByTagName('div');
			for(i=0;i<a.length;i++){
				document.getElementById('cat_box').getElementsByTagName('div')[i].style.display="none";
			}
			document.getElementById(str).style.display="block";
	}