function doLogin(){
	$("#form_login").submit();
}

function echeck(str) {

					var at="@"
					var dot="."
					var lat=str.indexOf(at)
					var lstr=str.length
					var ldot=str.indexOf(dot)
					if (str.indexOf(at)==-1)
		   			return false

					if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		   			return false

					if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		    			return false

		 			if (str.indexOf(at,(lat+1))!=-1)
		    			return false

		 			if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		    			return false

		 			if (str.indexOf(dot,(lat+2))==-1)
		    			return false
		
		 			if (str.indexOf(" ")!=-1)
		    			return false

 		 			return true					
			}
			
/* Recuperar resolucion de pantalla */
function writescreen(){
	var today = new Date();
	var the_date = new Date("December 31, 2023");
	var the_cookie_date = the_date.toGMTString();
	var the_cookie = "resolution="+screen.width +"-"+ screen.height;
	var the_cookie = the_cookie + ";expires=" + the_cookie_date + ";path=/";
	document.cookie=the_cookie
} 
writescreen();