var pdfImage = "http://media.aecom.com/newaecom/images/icons/pdfYes_icn.gif";
 var excelImage = "http://media.aecom.com/newaecom/images/icons/excelYes_icn.gif";
 var wordImage = "http://media.aecom.com/newaecom/images/icons/wordYes_icn.gif";
 var pdfOffImage = "http://media.aecom.com/newaecom/images/icons/pdfNo_icn.gif";
 var excelOffImage = "http://media.aecom.com/newaecom/images/icons/excelNo_icn.gif";
 var wordOffImage = "http://media.aecom.com/newaecom/images/icons/wordNo_icn.gif";

 var winImage = "http://media.aecom.com/newaecom/images/icons/icon_webcast.gif";
 var winOffImage = "http://media.aecom.com/newaecom/images/icons/icon_webcast.gif";



 

 function swapImages()
 {
 	
 	var docImages = document.getElementsByTagName("img");
     
	 
	 for(var i = 0; i < docImages.length; i++)
	 {
	 	
		var tempImage = docImages[i].src;
		var imageName = tempImage.substr(tempImage.lastIndexOf("/") + 1);
		
		switch(imageName)
		{
		
		case "md_pdf.gif":
			docImages[i].src=pdfImage;
			break;		
		
		case "md_pdf.gif":
			docImages[i].src=pdfOffImage;
			break;
			
		case "md_win.gif":
			docImages[i].src=winImage;
			break;		
		
		case "md_win.gif":
			docImages[i].src=winOffImage;
			break;

		case "wordYes_icn.gif":
			docImages[i].src=wordImage;
			break;
			
		case "wordNo_icn.gif":
			docImages[i].src=wordOffImage;
			break;
		
	    case "excelYes_icn.gif":
			docImages[i].src=excelImage;
			break;
		case "excelNo_icn.gif":
			docImages[i].src=excelOffImage;
			break;
	 	}
	 }
	
 
 }