var popupStatus = 0;  

function cargaPopup(nombrediv){
  if(popupStatus==0){  
    jQuery("#backgroundPopup").css({  
      "opacity": "0.7"  
    });  
    jQuery("#backgroundPopup").fadeIn("slow");  
    jQuery("#"+nombrediv).fadeIn("slow");  
    popupStatus = 1;  
   }  
}  

function centerPopup(nombrediv){  
  
  var windowWidth = document.documentElement.clientWidth;  
  var windowHeight = document.documentElement.clientHeight;  
  var popupHeight = jQuery("#"+nombrediv).height();  
  var popupWidth = jQuery("#"+nombrediv).width();  
  
  jQuery("#"+nombrediv).css({  
    "position": "absolute",  
    "top": windowHeight/2-popupHeight/2,  
    "left": windowWidth/2-popupWidth/2  
  });  
    
  jQuery("#backgroundPopup").css({  
  "height": windowHeight  
  });  
}  

function disablePopup(nombrediv){  
  if(popupStatus==1){  
    jQuery("#backgroundPopup").fadeOut("slow");  
    jQuery("#"+nombrediv).fadeOut("slow");  
    popupStatus = 0;  
  }  
  return false;
}  


function enablePopup(nombrediv){
  centerPopup(nombrediv);  
  cargaPopup(nombrediv);
  
}



// Funcion auxiliar

var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};





// Para los popups por defecto

jQuery(document).ready(function(){

  jQuery("#botonPopup").click(function(){  
    centerPopup("popupmotor");  
    cargaPopup("popupmotor");
  });  
  
  jQuery("#esqpopup").click(function(){  
	    centerPopup("popupMMMmotor");  
	    cargaPopup("popupMMMmotor");
  });

  jQuery("#popupClose").click(function(){  
    disablePopup("popupmotor");  
  });

  var todosLosPopups;
  try{
    todosLosPopups = document.getElementsByClassName("popupmotor");  
  }catch(err){}
  
  jQuery(window).bind("resize", resizeWindow);
  
  function resizeWindow( e ) {

    if (todosLosPopups!=null){
      for (i=0;i<todosLosPopups.length; i++){ 
        centerPopup(todosLosPopups[i].id);
      }
    }
  }
  
});