var win=null;
function EnviaVideo(mypage,myname,w,h,scroll,pos){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=40;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,status=no,toolbar=no,resizable=yes';
win=window.open(mypage,myname,settings);
if(win.focus){win.focus();}}
function CloseNewWin(){if(win!=null && win.open)win.close()}
//window.onfocus=CloseNewWin;


function calcu()
{
    ddia=(formulario_alta.d_ll.value*1);
	ad=(formulario_alta.d_ll.value*1)+2;
	aa=formulario_alta.a_ll.value*1;
	  
   	if (ad < 31)
	{
		formulario_alta.d_s.selectedIndex=ad;
	}
   
	if ( formulario_alta.m_ll.value== '02'  &&  ddia >= 28 )
	{
		if (aa % 4 == 0)
		 {
		 formulario_alta.d_ll.selectedIndex=28;
         formulario_alta.d_s.selectedIndex=3;
		 }
		 else
		 {
		 formulario_alta.d_ll.selectedIndex=27;		 
         formulario_alta.d_s.selectedIndex=2;		 
		 }
	}
	
   if( (formulario_alta.m_ll.value == '04' || formulario_alta.m_ll.value == '06' || formulario_alta.m_ll.value == '09' || formulario_alta.m_ll.value == '11' ) && ddia > 30)
   {
    formulario_alta.d_ll.selectedIndex=29;		 
   }
	
	if (ad == 30)
	{
		if(formulario_alta.m_ll.value == '01'  || formulario_alta.m_ll.value == '03' || formulario_alta.m_ll.value == '05' || formulario_alta.m_ll.value == '07' || formulario_alta.m_ll.value == '08' || formulario_alta.m_ll.value == '10' || formulario_alta.m_ll.value == '12')
		 {
		 		formulario_alta.d_s.selectedIndex=29;
		 }
		if(formulario_alta.m_ll.value == '04'  || formulario_alta.m_ll.value == '06' || formulario_alta.m_ll.value == '09' || formulario_alta.m_ll.value == '11' )
		 {
		 		formulario_alta.d_s.selectedIndex=1-1;
		 }
	}	
	
	if (ad == 31)
	{
		if(formulario_alta.m_ll.value == '01'  || formulario_alta.m_ll.value == '03' || formulario_alta.m_ll.value == '05' || formulario_alta.m_ll.value == '07' || formulario_alta.m_ll.value == '08' || formulario_alta.m_ll.value == '10' || formulario_alta.m_ll.value == '12')
		 {
		 		formulario_alta.d_s.selectedIndex=0;
		 }
		if(formulario_alta.m_ll.value == '04'  || formulario_alta.m_ll.value == '06' || formulario_alta.m_ll.value == '09' || formulario_alta.m_ll.value == '11' )
		 {
		 		formulario_alta.d_s.selectedIndex=1;
		 }
	}


	if (ad > 31)
	{
		if(formulario_alta.m_ll.value == '01'  || formulario_alta.m_ll.value == '03' || formulario_alta.m_ll.value == '05' || formulario_alta.m_ll.value == '07' || formulario_alta.m_ll.value == '08' || formulario_alta.m_ll.value == '10' || formulario_alta.m_ll.value == '12')
		 {
		 		formulario_alta.d_s.selectedIndex=ad - 31;
		 }
		if(formulario_alta.m_ll.value == '04'  || formulario_alta.m_ll.value == '06' || formulario_alta.m_ll.value == '09' || formulario_alta.m_ll.value == '11' )
		 {
		 		formulario_alta.d_s.selectedIndex=ad - 30;
		 }
	}

	if (formulario_alta.d_s.value < formulario_alta.d_ll.value)
	{
 		if (formulario_alta.m_ll.value == '12')
	  {
	  	formulario_alta.m_s.selectedIndex=0;
	  }
	  else
	  {
	   formulario_alta.m_s.selectedIndex = formulario_alta.m_ll.selectedIndex *1+ 1;
	  }
	}
	
	if (formulario_alta.m_s.value < formulario_alta.m_ll.value)
	{
	   if (formulario_alta.m_ll.value == '12')
	   {
	   	formulario_alta.a_s.selectedIndex=1;
	   }
	   else
	   {
	   formulario_alta.a_s.selectedIndex = formulario_alta.a_ll.selectedIndex *1+ 1;
	   }
	}

}