function ChangePrinterImage(){
	var image = document.getElementById("PrinterImage");
	//alert(image.src);
	//indexOf returns the index of a substring and returns -1 if not found
	if(image.src.indexOf("PrinterBlackStatic.jpg")>-1){
		image.src  ="/images/Template/PrinterBlack.gif";
		window.print(); //opens print dialogue
		setTimeout("ChangePrinterImage()",10*1000); //in milliseconds
		//var t=setTimeout("alert('5 seconds!')",5000);
	}
	else{
		image.src="/images/Template/PrinterBlackStatic.jpg";
	}
}