function showS(xItem){
var item=eval("_"+xItem);
var imge=eval("document.i"+xItem);
	if (item.style.display!=''){
		imge.src="images/red.gif";
		item.style.display='';}
	else{
		imge.src="images/blue.gif";
		item.style.display='none';}
}

function MovePg(nPg){
	
xform=document.forms[0];
		xform.Pg.value=nPg;
		xform.submit();
		
}
//-------------------------------------------------------------//

function addNew(xform){
	xform.action=strPg+"_add.php";
	xform.submit();
}

function SelectAll(xform){
var xSel=xform.chkAll.checked;
	for(i=0;i<(xform.chkID).length;i++){
		xform.chkID[i].checked=xSel;
	}
}

function Delete(xform){
var chkItems="";
	
	if(xform.chkID.checked) chkItems=xform.chkID.value;
	else {
			for(i=0;i<(xform.chkID).length;i++){
			if(xform.chkID[i].checked) chkItems+=xform.chkID[i].value+",";
			}
	}

		if (chkItems!=""){
			if(confirm("Esta seguro de eliminar el registro?")){
			xform.accion.value="delete";
			xform.action=strPg+".php?chkItems="+chkItems;
			xform.submit();
			}
		}

}

function Cambio(xform){
var cambio=0;
cambio=1;
xform.action=strPg+".php?cambio="+cambio;
xform.submit();
}

function Activa(xform){
var cont=0;
var aux=0;
var maximo=0;
	
   	  for(j=0;j<(xform.chkID).length;j++){
			if(xform.chkID[j].checked){
				       aux = parseInt(xform.text_or[j].value);
				       if (aux>=maximo)
				          {
						    maximo=aux;
						   }
		      }
		}
cont=maximo;


if(xform.chkID.checked) {eval("xform.text_or.disabled=false");
	   cont++;	
       xform.text_or.value=cont;}
	else {
   	  for(i=0;i<(xform.chkID).length;i++){
			if(xform.chkID[i].checked){eval("xform.text_or[i].disabled=false");
			   if(xform.text_or[i].value==""){
			   cont++;
			   }
		        if(xform.text_or[i].value==""){ xform.text_or[i].value=cont;}
			   
			   }
		}
	}

  if(xform.chkID.checked==false){ eval("xform.text_or.disabled=true");
     xform.text_or.value="";}
	else {
		for(i=0;i<(xform.chkID).length;i++){
			if(xform.chkID[i].checked==false){eval("xform.text_or[i].disabled=true");
			   xform.text_or[i].value="";	
			}
		}
	}
}