function MM_jumpMenu(targ,selObj,restore){ //v3.0

	 eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");

	 if (restore) selObj.selectedIndex=0;
}


function imgSwap(oImg)
{
   var strOver  = "_on"    // image to be used with mouse over
   var strOff = "_off"     // normal image
   var strImg = oImg.src
   if (strImg.indexOf(strOver) != -1) 
      oImg.src = strImg.replace(strOver,strOff)
   else
      oImg.src = strImg.replace(strOff,strOver)
}



// Formulario
function showText(ob, txt){
	if (ob.value == "") {
		ob.value = txt;
		}
	}

function clearText(ob, txt){
	if (ob.value == txt) {
		ob.value = "";
		}
	}