/* cabecera_visible.js compiled from X 4.01 with XC 0.29b. Distributed under GNU LGPL. For copyrights, license, documentation and more visit Cross-Browser.com */
var xOp7Up,xOp6Dn,xIE4Up,xIE4,xIE5,xNN4,xUA=navigator.userAgent.toLowerCase();

if(window.opera){var i=xUA.indexOf('opera');
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		}
		xMac=xUA.indexOf('mac')!=-1;
		function xDef(){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') return false;
		}return true;}
function xGetElementById(e){if(typeof(e)=='string') {if(document.getElementById) e=document.getElementById(e);
	else if(document.all) e=document.all[e];
	else e=null;
	}return e;
}function xLeft(e, iX){if(!(e=xGetElementById(e))) return 0;
var css=xDef(e.style);
if (css && xStr(e.style.left)) {if(xNum(iX)) e.style.left=iX+'px';
else {iX=parseInt(e.style.left);
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	else iX=e.style.pixelLeft;
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	}
function xMoveTo(e,x,y){xLeft(e,x);
	xTop(e,y);
}
function xNum(){for(var i=0;
	i<arguments.length; ++i){if(isNaN(arguments[i]) || typeof(arguments[i])!='number') return false;
}return true;}
function xScrollTop(e, bWin){var offset=0;
if (!xDef(e) || bWin || e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {var w = window;
if (bWin && e) w = e;
if(w.document.documentElement && w.document.documentElement.scrollTop) offset=w.document.documentElement.scrollTop;
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}else {e = xGetElementById(e);
if (e && xNum(e.scrollTop)) offset = e.scrollTop;
}return offset;
}function xStr(s){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='string') return false;
}return true;}
function xTop(e, iY){if(!(e=xGetElementById(e))) return 0;var css=xDef(e.style);
if(css && xStr(e.style.top)) {if(xNum(iY)) e.style.top=iY+'px';else {iY=parseInt(e.style.top);
if(isNaN(iY)) iY=0;}}else if(css && xDef(e.style.pixelTop)) {if(xNum(iY)) e.style.pixelTop=iY;
else iY=e.style.pixelTop;}return iY;}