function openad(ThisID){
	if(document.getElementById("exp_adv_" + ThisID).style.display == "none"){

		document.getElementById("exp_adv_" + ThisID).style.display = ""
		//document["plusminus" + ThisID].src =  "images/ad_dot_minus.gif"


	}
	else{
		document.getElementById("exp_adv_" + ThisID).style.display = "none"
		//document["plusminus" + ThisID].src =  "images/ad_dot.gif"

	}
}