function mouseOverBtn(id,img){
	document.getElementById(id).style["background"] = "url("+img+") no-repeat";
}
function mouseOutBtn(id,img){
	document.getElementById(id).style["background"] = "url("+img+") no-repeat";
}
function open_popup(url) {
	window.open(url, "myWindow", "status = 1, height = 500, width = 560, resizable = 0 , scrollbars=yes");
}