function changeTag (name, title, price, pic, more)
{
 				document.getElementById('author').innerHTML = name; 
				document.getElementById('title').value = title;
				document.getElementById('cost').value = price;
				document.getElementById('price').innerHTML = price;
				document.images.bookimg.src= pic;
							
				if(more == 'blank')
				{
				 				document.getElementById('readcomments').innerHTML = ' ';
				}
				else
				{
								document.getElementById('readcomments').innerHTML = '<a href="' + more + '.html">Read Comments >></a>';
				}
				

}


function switchItems(obj) {
				 var el = document.getElementById(obj);
				 if ( el.style.display = 'block' ) {
				 		el.style.display = 'none';
						}
				 else {
				 			el.style.display = '';
					  }
}

function switchNews(obj) {
				 var el = document.getElementById(obj);
				 if ( el.style.display != 'none' ) {
				 		el.style.display = 'none';
						}
				 else {
				 			el.style.display = '';
					  }
}

function switchBlock(obj) {
		  var el = document.getElementById(obj);
		  var els = document.getElementsByTagName("div");    
          for (var i=0; i<els.length; i++) {   
		  	  strID = els[i].id;
		  	  if ( (strID.substring(0,7) == 'collaps')&&(strID != obj)) {
			  	 els[i].style.display = 'none';
			  	 }
		  }
				 
				 if ( el.style.display == 'block' ) {
				 		el.style.display = 'none';
						}
				 else {
				 			el.style.display = 'block';
					  }
}