this.getImageOrLinkCount = function(doc, Element, reg, attr) {
        var allRequestedElementCount = 0 ;

	     for (var i =  0 ; i < Element.length; i++) {
           if (reg.exec(Element[i].getAttribute(attr))) {
		  	  allRequestedElementCount++;
           }
        }

        return allRequestedElementCount;
    }

....


if (inputPar[i] == "links") {
                imagesElement = doc.links;
            }

 this.getImageOrLink = function(doc, Element, reg, allRequestedElementCount, attr, elementCount ) {
	   var cnt= 0 ;
	       for (var i =  0 ; i < Element.length; i++) {
              if (reg.exec(Element[i].getAttribute(attr))) {
 			    allRequestedElementCount++;
				cnt++;
	     		if (allRequestedElementCount == elementCount){
                    return Element[i].type + ";;" + i;
                }
			   }
        }

        return cnt;
    }

for (var i =  0 ; i < inputPar.length; i++) {
            if (linksElement.length >  0  && imagesElement.length >  0 ) {
                break;
            }
            if (inputPar[i] == "images") {
                imagesElement = doc.images;
            }
            if (inputPar[i] == "links") {
                linksElement = doc.links;
            }
        }