function DoPostBack(formulario,variable,accion){
	document.getElementById('hidvariables').value=variable;
	document.getElementById('accion').value=accion;
	eval('document.'+formulario+'.submit();');
}

function TextSize(percent){
	if(document.body.style.fontSize==""){
		document.body.style.fontSize="100%";
	}
	numpercent=document.body.style.fontSize.substring(0,3);
	document.body.style.fontSize=(percent+parseInt(numpercent))+'%';
}