function DivShow(e, articles_id) {
  if(!e) e = window.event;
 	var myBrowser = {
   IE:     !!(window.attachEvent && !window.opera),
   Opera:  !!window.opera,
   WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
   Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
   MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
   };
   
  if(myBrowser.IE) {
   document.all.picture_overlay_div.style.left = (e.clientX + document.body.scrollLeft + 20);
  	document.all.picture_overlay_div.style.top = (e.clientY + document.body.scrollTop + 20);
 	 document.all.picture_overlay_div.style.visibility = "visible";
 	 
 	  	  document.all.picture_overlay_image.src = "../images/image_" + articles_id + "_1.jpg";
 	  	 
 	 } else {
 	  
 	 document.getElementById("picture_overlay_div").style.visibility = "visible";
  	
  	 	  document.getElementById("picture_overlay_image").src = "../images/image_" + articles_id + "_1.jpg";
 	  	 
  	document.getElementById("picture_overlay_div").style.left = e.pageX + 20;
   document.getElementById("picture_overlay_div").style.top = e.pageY + 20;
	  }
	 }

 function DivHide() {
  var myBrowser = {
   IE:     !!(window.attachEvent && !window.opera),
   Opera:  !!window.opera,
   WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
   Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
   MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
   };
  
  if(myBrowser.IE) {
 	 document.all.picture_overlay_div.style.visibility = "hidden";
 	 } else {
 	 document.getElementById("picture_overlay_div").style.visibility = "hidden";
 	 }
 	}

 function changePicture(picture_id, articles_id) {
  	  document.getElementById("mainpicture").src = "../images/image_" + articles_id + "_" + picture_id + ".jpg";
   	}

 function openWindow(url) {
  window_1 = window.open(url, "_blank", "width=400,height=500,left=100,top=100");
  window_1.focus();
  }

 function openWindowOrder(url) {
  window_1 = window.open(url, "_blank", "width=780,height=600,left=100,top=100,scrollbars=yes");
  window_1.focus();
  }

 function openWindowChat(url) {
  window_1 = window.open(url, "_blank", "width=405,height=700,left=100,top=100,scrollbars=no");
  window_1.focus();
  }

 function addToBag(articles_id) {
  var stk = parseInt(document.getElementById("new_stk_" + articles_id).value);
  if(document.getElementById("bag_stk_" + articles_id + "_1").style.visibility == 'visible') {
   var bag_stk = parseInt(document.getElementById("bag_stk_" + articles_id + "_1").firstChild.nodeValue);
   } else {
   var bag_stk = 0;
   }
  if(stk > 0) {
   var ajax = new Ajax.Request('index.php', 
                               {method: 'get',
                                parameters: {action: 'articles',
                                             function_2: 'bag_add',
                                             new_articles_id: '' + articles_id + '',
                                             new_stk: '' + stk + ''}});
   if(document.all){
    document.getElementById("bag_stk_" + articles_id + "_1").innerText = bag_stk + stk;
    } else{
    document.getElementById("bag_stk_" + articles_id + "_1").innerHTML = bag_stk + stk;
    }

   document.getElementById("bag_stk_" + articles_id + "_1").style.visibility = 'visible';
   document.getElementById("bag_stk_" + articles_id + "_2").style.visibility = 'visible';
   
   document.getElementById("new_stk_" + articles_id).value = 1;
   } else {
   document.getElementById("new_stk_" + articles_id).value = 1;
   }
  }
 
 function checkEnter(e, articles_id) {
  var myBrowser = {
   IE:     !!(window.attachEvent && !window.opera),
   Opera:  !!window.opera,
   WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
   Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
   MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
   };
   
  if(myBrowser.IE) {
   if(!e) e = window.event;
   if(e.keyCode == 13) {
    setTimeout(addToBag(articles_id),100);
    }
   }
  }