function rollOn(obj){
	file=obj.src;
	obj.src=file.replace('_Off','_On');
}

function rollOff(obj){
	file=obj.src;
	obj.src=file.replace('_On','_Off');
}

var Key='';
function keyhandler(e) {
	if ((Key >=48 && Key <=57) || (Key >=96 && Key <=105) || Key==46 || Key==8 || Key==9 || Key==188 || (Key >=37 && Key <=40)){return true}else{return false};
}


function validarEmail(valor) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor)){
		return (true);
	} else {
		return (false);
	}
}

function modificaEstado(ver){
	var par=document.getElementById('botoneralateral');
	var clds=par.childNodes;
	
	for (var z0=0;z0<clds.length;z0++){
		if (clds[z0].nodeName=='LI' && clds[z0].id.indexOf('esplega')>=1){
			clds[z0].style.display='none';
		}
	}
	
	if(document.getElementById('desplega'+ver).style.display=='none'){
		document.getElementById('desplega'+ver).style.display='block';
		document.getElementById('catprincipal'+ver).className=document.getElementById('catprincipal'+ver).className.replace('On','Off');		
	}else{
		document.getElementById('desplega'+ver).style.display='none';
		document.getElementById('catprincipal'+ver).className=document.getElementById('catprincipal'+ver).className.replace('Off','On');	
	}
};