function ShowHide(oImg, imgId1, imgId2, ObjID){
	var objBlock = document.getElementById(ObjID);
	if(objBlock.style.display == "none" || objBlock.style.display == "")  {
		objBlock.style.display = "block";
		if (imgId2 != '') {
			eval('var re = /' + imgId1 + '/gi')
			var str = oImg.src;
			oImg.src = str.replace(re, imgId2);
		}	
	}
	else{
		objBlock.style.display = "none";
		if (imgId1 != '') {
			eval('var re = /' + imgId2 + '/gi')
			var str = oImg.src;
			oImg.src = str.replace(re,imgId1);
		}	
	}
}