var CornerController = function(cname,t,r,b,l){
	this.topCorner = t
	this.leftCorner = l
	this.bottomCorner = b
	this.rightCorner = r
	this.cornerClass=cname
}
CornerController.prototype.initCorners=function(cname,t,r,b,l){
	this.topCorner = t
	this.leftCorner = l
	this.bottomCorner = b
	this.rightCorner = r
	this.cornerClass=cname
	//alert(this.topCorner)
}
CornerController.prototype.drawCorners=function(){

	var corners = 	getElementsByClassName(this.cornerClass)
	//alert(this.cornerClass)
	for (var ele in corners){
		
		var thisElement = corners[ele]
		//alert(thisElement)
		var div = document.createElement('div')
		div.innerHTML = '<img src="' + this.topCorner + '" style="position:absolute;top:0;left:0" />'
		div.innerHTML += '<img src="' + this.rightCorner + '" style="position:absolute;top:0;right:0" />'
		div.innerHTML += '<img src="' + this.bottomCorner + '" style="position:absolute;bottom:0;right:0" />'
		div.innerHTML += '<img src="' + this.leftCorner + '" style="position:absolute;bottom:0;left:0" />'
		
		//if (thisElement.style.position != 'absolute') thisElement.style.position='relative'
		
		thisElement.appendChild(div)
		
	}
}
CornerController.prototype.drawCorner=function(ele,typ){
	
}

function getElementsByClassName(strClass, strTag, objContElm) {
  strTag = strTag || "*";
  objContElm = objContElm || document;
  var objColl = objContElm.getElementsByTagName(strTag);
  if (!objColl.length &&  strTag == "*" &&  objContElm.all) objColl = objContElm.all;
  var arr = new Array();
  var delim = strClass.indexOf('|') != -1  ? '|' : ' ';
  var arrClass = strClass.split(delim);
  for (var i = 0, j = objColl.length; i < j; i++) {
    var arrObjClass = objColl[i].className.split(' ');
    if (delim == ' ' && arrClass.length > arrObjClass.length) continue;
    var c = 0;
    comparisonLoop:
    for (var k = 0, l = arrObjClass.length; k < l; k++) {
      for (var m = 0, n = arrClass.length; m < n; m++) {
        //if (arrClass[m] == arrObjClass[k]) c++;
        if (arrObjClass[k].indexOf(arrClass[m])>-1) c++;
        if (( delim == '|' && c == 1) || (delim == ' ' && c == arrClass.length)) {
          arr.push(objColl[i]);
          break comparisonLoop;
        }
      }
    }
  }
  return arr;
}