var control;
function _Mtd_EvtInyeccion(e)
{
	if(window.navigator.appName=="Microsoft Internet Explorer")
	{
		if(event.keyCode==39||event.keyCode==45||event.keyCode==62||event.keyCode==60||event.keyCode==59||String.fromCharCode(event.keyCode)=="&"||String.fromCharCode(event.keyCode)=="$"||String.fromCharCode(event.keyCode)=="/")
		{
			event.returnValue=false;
		}
	}
	else
	{
		if(String.fromCharCode(e.which)=="'"||String.fromCharCode(e.which)=="-"||String.fromCharCode(e.which)==";"||String.fromCharCode(e.which)=="<"||String.fromCharCode(e.which)==">"||String.fromCharCode(e.which)=="&"||String.fromCharCode(e.which)=="$"||String.fromCharCode(e.which)=="/")
		{
			e.returnValue=false; 
			e.cancelBubble = true; 
			if (e.stopPropagation) 
			{
				e.preventDefault(); 
			}
		}
	}											
}
function _Mtd_EvtInyeccion_()
{
	var _Cantidad=document.forms[0].elements.length;
	for(i=0;i<_Cantidad;i++)
	{
			if(document.forms[0].elements[i].type=="text")
			{				
				var idtext=document.forms[0].elements[i].id;
				if(window.navigator.appName=="Microsoft Internet Explorer")
				{
					document.getElementById(idtext).attachEvent('onkeypress',_Mtd_EvtInyeccion);
					control=idtext;					
					
				}
				else
				{
					document.getElementById(idtext).addEventListener('keypress',_Mtd_EvtInyeccion,true);	
					
				}
			}			
	}
}