if (document.images) {
	img1over = new Image();
	img1over.src = url + "HideBotInicio_On.gif";
	img2over = new Image();
	img2over.src = url + "_On.gif";

	img1out = new Image();
	img1out.src = url + "_Off.gif";

}

function turnOn(imgName) {if (document[imgName]){document[imgName].src = eval( imgName + "over.src");}}
function turnOff(imgName) {if (document[imgName]){if (document.images) {document[imgName].src = eval(imgName + "out.src");}}}

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 >=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 ajuste(tagId){
	var i=1;
	var t=1;
	var z=1;
	var maxheight=Array();
	while (document.getElementById(tagId+i)!=null){
		if(!maxheight[t]>=1){maxheight[t]=0;}

		if(document.getElementById(tagId+i).clientHeight>=maxheight[t]){
			maxheight[t]=document.getElementById(tagId+i).clientHeight;
		}

		i++;
		z++;
		if(z==4){t++;z=1;}
	}

	i=1;
	t=1;
	z=1;
	pp='';
	while (document.getElementById(tagId+i)!=null){
		document.getElementById(tagId+i).height = maxheight[t]+'px';

		i++;
		z++;
		if(z==4){t++;z=1;}
	}

}

function cambiaBk_On(backg){
	document.getElementById('marca'+backg).style.background= 'url(' + url2 + 'oBkRolOn.gif)';
	document.getElementById('marca'+backg).style.cursor='pointer';
}

function cambiaBk_Off(backg){
	document.getElementById('marca'+backg).style.background='';
	document.getElementById('marca'+backg).style.cursor='pointer';
}

function modificaEstado(ver){
	if(document.getElementById('desplega'+ver).style.display=='none'){
		document.getElementById('desplega'+ver).style.display='block';
		rollOff(document.getElementById('flecha'+ver));
	}else{
		document.getElementById('desplega'+ver).style.display='none';
		rollOn(document.getElementById('flecha'+ver));
	}
};