var iFrameTransparenteVisible=false;

function visualizaIframeTrans()
{
	iFrameTransparenteVisible=true;
	window.onscroll=frameTransPosiciona;
	window.onresize=frameTransPosiciona;
	frameTransPosiciona();
	hideSelect();
}


function hideSelect(){
 	for (j=0; j<document.forms.length; j++) {
		var theForm = document.forms[j]
    	for(i=0; i<theForm.elements.length; i++){
			if(theForm.elements[i].type == "select-one"  ||  theForm.elements[i].type == "select-multiple"){ 
			    theForm.elements[i].style.visibility = "hidden";
			}
		}
	}
} 

function showSelect(){
 	for (j=0; j<document.forms.length; j++) {
		var theForm = document.forms[j]
    	for(i=0; i<theForm.elements.length; i++){
			if(theForm.elements[i].type == "select-one"  ||  theForm.elements[i].type == "select-multiple"){ 
			    theForm.elements[i].style.visibility = "";
			}
		}
	}
} 

function loadIframeTransSize(sHREF, ancho, alto)
{

    var divCapaiFrame = document.getElementById('capaiFrame');
    var iFrame=document.getElementById('iframeTrans'); 
    
    divCapaiFrame.style.width=ancho +'px';
    divCapaiFrame.style.height=alto +'px'; 
   iFrame.style.width=ancho +'px';
   iFrame.style.height=alto +'px'; 
   document.getElementById('tablaTransparenciaCierra').width=ancho + 'px';
   	loadIframe(sHREF);
	
}

function loadIframeTrans(sHREF)
{
    loadIframeTransSize (sHREF,500,400);
}

function loadIframe(sHREF)
{
	iFrameTransparenteVisible=true;
	parent.iframeTrans.location.href=sHREF;
	window.onscroll=frameTransPosiciona;
	window.onresize=frameTransPosiciona;
	frameTransPosiciona();
	hideSelect();
}



function getAnchoVentana()
{
    var tamanio = {x: 800, y: 600}
    if (parseInt(navigator.appVersion)>3) {
     if (navigator.appName=="Netscape") {
      tamanio.x = window.innerWidth-16;
      tamanio.y = window.innerHeight-16;
     }
     if (navigator.appName.indexOf("Microsoft")!=-1) {
      tamanio.x = document.documentElement.clientWidth-20;
      tamanio.y= document.documentElement.clientHeight-20;
     }
    }
   return (tamanio);
}

function aframeTransPosiciona()
{
    var divCapaTransparencia = document.getElementById('capaTransparencia');
    var divCapaiFrame = document.getElementById('capaiFrame');

	if (iFrameTransparenteVisible)
	{
	   	divCapaTransparencia.style.display='block';
		divCapaiFrame.style.display='block';
	
		divCapaTransparencia.style.width=document.body.clientWidth + 'px';
		divCapaTransparencia.style.height=document.body.clientHeight + 'px';
		divCapaTransparencia.style.top=document.body.scrollTop+ 'px';
		
		divCapaiFrame.style.left=parseInt(document.body.clientWidth)/2 - parseInt(divCapaiFrame.style.width)/2;
		divCapaiFrame.style.top=document.body.scrollTop+parseInt(document.body.clientHeight)/2 - parseInt(divCapaiFrame.style.height)/2;
		divCapaTransparencia.style.display='block';
		divCapaiFrame.style.display='block';
	}
}

function frameTransPosiciona()
{
    var tamanioBody;

    var divCapaTransparencia = document.getElementById('capaTransparencia');
    var divCapaiFrame = document.getElementById('capaiFrame');
    tamanioBody=getAnchoVentana();
    
	if (iFrameTransparenteVisible)
	{
	  
 		divCapaTransparencia.style.display='block';
		divCapaiFrame.style.display='block';
		
		divCapaTransparencia.style.width = tamanioBody.x+50 + 'px';
		divCapaTransparencia.style.height = tamanioBody.y+50 + 'px';
		divCapaTransparencia.style.left = document.documentElement.scrollLeft + 'px';
		divCapaTransparencia.style.top= document.documentElement.scrollTop + 'px';
		divCapaiFrame.style.left = (parseInt(tamanioBody.x) - parseInt(divCapaiFrame.offsetWidth))/2 + parseInt(document.documentElement.scrollLeft) + 'px'; // + ((document.all)?document.body.scrollLeft:window.pageXOffset)*/) + 'px';
		divCapaiFrame.style.top = (parseInt(tamanioBody.y) - parseInt(divCapaiFrame.offsetHeight))/2 + parseInt(document.documentElement.scrollTop) + 'px'; //+ ((document.all)?document.body.scrollTop:window.pageYOffset)) + 'px';
	}
}
function frameTransFin()
{
    var divCapaTransparencia = document.getElementById('capaTransparencia');
    var divCapaiFrame = document.getElementById('capaiFrame');

    parent.iframeTrans.location.href='about:blank';
    iFrameTransparenteVisible=false;
    showSelect();
    divCapaTransparencia.style.display='none';
    divCapaiFrame.style.display='none';
    window.onscroll='';
    window.onresize='';
	
}