function replace(iddiv){
	var DIV=document.getElementById(iddiv);
	switch(screen.width){
		case 800:
			DIV.style.left="600px";
			break;
		case 1024:
			DIV.style.left="700px";
			break;
		case 1280:
			DIV.style.left="850px";
	}
	DIV.style.display="block";
}