function reemplaza(fvariable)
	{
		while(fvariable.indexOf(" ")!=-1)
			{
			fvariable = fvariable.replace(" ","_");	
			}
		
		while(fvariable.indexOf("ñ")!=-1)
			{
			fvariable = fvariable.replace("ñ","n");
			}

		while(fvariable.indexOf("Ñ")!=-1)
			{
			fvariable = fvariable.replace("Ñ","N");
			}
				
		while(fvariable.indexOf("á")!=-1)
			{
			fvariable = fvariable.replace("á","a");
			}
				
		while(fvariable.indexOf("é")!=-1)
			{
			fvariable = fvariable.replace("é","e");
			}
				
		while(fvariable.indexOf("í")!=-1)
			{
			fvariable = fvariable.replace("í","i");
			}
			
		while(fvariable.indexOf("ó")!=-1)
			{
			fvariable = fvariable.replace("ó","o");
			}

		while(fvariable.indexOf("ú")!=-1)
			{
			fvariable = fvariable.replace("ú","u");
			}

		while(fvariable.indexOf("Á")!=-1)
			{
			fvariable = fvariable.replace("Á","A");
			}

		while(fvariable.indexOf("É")!=-1)
			{
			fvariable = fvariable.replace("É","E");
			}

		while(fvariable.indexOf("Í")!=-1)
			{
			fvariable = fvariable.replace("Í","I");
			}

		while(fvariable.indexOf("Ó")!=-1)
			{
			fvariable = fvariable.replace("Ó","O");
			}

		while(fvariable.indexOf("Ú")!=-1)
			{
			fvariable = fvariable.replace("Ú","U");
			}
		
		return fvariable;
	}